Error: Invalid JSON (<!DOCTYPE html> <html lang="en"> <head>

   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Wikimedia Commons SPARQL Query Error</title>
   <script src="https://cdn.tailwindcss.com"></script>
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap" rel="stylesheet">
   <style>
       body {
           font-family: 'Inter', sans-serif;
           background-color: #f3f4f6;
       }
       .container {
           max-width: 900px;
       }
       .error-box {
           background-color: #fee2e2;
           color: #ef4444;
           padding: 1.5rem;
           border-radius: 0.5rem;
           border: 1px solid #ef4444;
           word-wrap: break-word; /* Ensure long URLs/messages wrap */
       }
       code {
           background-color: #e2e8f0;
           padding: 0.2rem 0.4rem;
           border-radius: 0.25rem;
           font-family: monospace;
       }
   </style>

</head> <body class="p-4 flex items-center justify-center min-h-screen">

SPARQL Query Service

Operation Failed:

An error occurred during query execution: HTTP Error: 400 Response: SPARQL-QUERY: queryStr= SELECT DISTINCT ?item ?file ?date ?label ?qualityLabel ?latitude ?longitude ?type ?subtype ?source WHERE { SERVICE wikibase:label {bd:serviceParam wikibase:language 'en'} { SELECT DISTINCT ?item ?file ?date ?label ?quality ?latitude ?longitude ?type ?subtype ?source WHERE { { SELECT DISTINCT ?item ?date ?file ?type ?subtype ?source (COALESCE(?label1,?label2) AS ?label) (SAMPLE (COALESCE(?latitude1,?latitude2)) AS ?latitude) (SAMPLE (COALESCE(?longitude1,?longitude2)) AS ?longitude) (SAMPLE(?qualitylist) AS ?quality) WHERE { {?item wdt:P180 wd:Q8043908} UNION {SERVICE wikibase:mwapi{ bd:serviceParam wikibase:api 'Generator' . bd:serviceParam wikibase:endpoint 'commons.wikimedia.org' . bd:serviceParam mwapi:gcmtitle 'Category:Xerri's Grotto' . bd:serviceParam mwapi:generator 'categorymembers' . bd:serviceParam mwapi:gcmtype 'file' . bd:serviceParam mwapi:gcmlimit 'max' . ?title wikibase:apiOutput mwapi:title . ?pageid wikibase:apiOutput '@pageid' . } BIND (URI(CONCAT('https://commons.wikimedia.org/entity/M', ?pageid)) AS ?item) } OPTIONAL {?item rdfs:label ?label1 FILTER(LANG(?label1) = 'en')} ?item schema:url ?url. BIND (CONCAT('File:',wikibase:decodeUri(substr(str(?url),52))) AS ?file) BIND(REPLACE(REPLACE(?file, '^File:', ), '.[^.]*$', ) AS ?label2) OPTIONAL {?item wdt:P571 ?date} OPTIONAL {?item wdt:P6731 ?qualitylist} OPTIONAL { ?item p:P1259 ?position1. ?position1 psv:P1259/wikibase:geoLatitude ?latitude1a. ?position1 psv:P1259/wikibase:geoLongitude ?longitude1a. BIND(STR(?latitude1a) AS ?latitude1) BIND(STR(?longitude1a) AS ?longitude1) } OPTIONAL { ?item p:P9149 ?position2. ?position2 psv:P9149/wikibase:geoLatitude ?latitude2a. ?position2 psv:P9149/wikibase:geoLongitude ?longitude2a. BIND(STR(?latitude2a) AS ?latitude2) BIND(STR(?longitude2a) AS ?longitude2) } BIND(CONCAT('commons') AS ?type) BIND(CONCAT('image') AS ?subtype) BIND(CONCAT('Commons') AS ?source) FILTER ( STRENDS(LCASE(STR(?file)), '.jpg') || STRENDS(LCASE(STR(?file)), '.jpeg') ) } GROUP BY ?item ?date ?file ?label1 ?label2 ?latitude1 ?latitude2 ?longitude1 ?longitude2 ?type ?subtype ?source } } ORDER BY DESC(?quality) ASC(?date) LIMIT 10 } } GROUP BY ?item ?file ?date ?label ?qualityLabel ?latitude ?longitude ?type ?subtype ?source ORDER BY ASC(?date) java.util.concurrent.ExecutionException: org.openrdf.query.MalformedQueryException: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:206) at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(BigdataServlet.java:292) at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlQuery(QueryServlet.java:678) at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:275) at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:269) at com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doPost(MultiTenancyServlet.java:195) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655) at org.wikidata.query.rdf.blazegraph.throttling.ThrottlingFilter.doFilter(ThrottlingFilter.java:322) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.throttling.SystemOverloadFilter.doFilter(SystemOverloadFilter.java:84) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at ch.qos.logback.classic.helpers.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:50) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.QueryEventSenderFilter.doFilter(QueryEventSenderFilter.java:125) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.ClientIPFilter.doFilter(ClientIPFilter.java:43) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.JWTIdentityFilter.doFilter(JWTIdentityFilter.java:66) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.RealAgentFilter.doFilter(RealAgentFilter.java:33) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) at org.wikidata.query.rdf.blazegraph.filters.RequestConcurrencyFilter.doFilter(RequestConcurrencyFilter.java:50) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:503) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) at java.lang.Thread.run(Thread.java:750) Caused by: org.openrdf.query.MalformedQueryException: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseQuery2(Bigdata2ASTSPARQLParser.java:404) at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:741) at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:695) at com.bigdata.rdf.task.ApiTaskForIndexManager.call(ApiTaskForIndexManager.java:68) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ... 1 more Caused by: com.bigdata.rdf.sail.sparql.ast.TokenMgrError: Lexical error at line 16, column 63. Encountered: " " (32), after : "s" at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilderTokenManager.getNextToken(SyntaxTreeBuilderTokenManager.java:3994) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.jj_ntk(SyntaxTreeBuilder.java:9637) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.RDFLiteral(SyntaxTreeBuilder.java:7189) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphTerm(SyntaxTreeBuilder.java:3893) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.VarOrTermOrTRefP(SyntaxTreeBuilder.java:8714) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphNodePath(SyntaxTreeBuilder.java:3786) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ObjectPath(SyntaxTreeBuilder.java:3467) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ObjectListPath(SyntaxTreeBuilder.java:3044) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.PropertyListPath(SyntaxTreeBuilder.java:2992) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.TriplesSameSubjectPath(SyntaxTreeBuilder.java:2919) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.TriplesBlock(SyntaxTreeBuilder.java:2321) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.BasicGraphPattern(SyntaxTreeBuilder.java:2097) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2034) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.ServiceGraphPattern(SyntaxTreeBuilder.java:2534) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2370) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2459) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SubSelect(SyntaxTreeBuilder.java:416) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1965) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SubSelect(SyntaxTreeBuilder.java:416) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1965) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupOrUnionGraphPattern(SyntaxTreeBuilder.java:2451) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPatternNotTriples(SyntaxTreeBuilder.java:2361) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2047) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GraphPattern(SyntaxTreeBuilder.java:2056) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.GroupGraphPattern(SyntaxTreeBuilder.java:1969) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.WhereClause(SyntaxTreeBuilder.java:1013) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.SelectQuery(SyntaxTreeBuilder.java:377) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Query(SyntaxTreeBuilder.java:328) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.QueryContainer(SyntaxTreeBuilder.java:216) at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.parseQuery(SyntaxTreeBuilder.java:32) at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseQuery2(Bigdata2ASTSPARQLParser.java:336) ... 7 more

</body> </html>).

Xerri's Grotto is a cave in Xagħra, Gozo, Malta. It was discovered by local resident Anthony Xerri in 1923 or 1924 while digging a well under a private house. Xerri's Grotto is not far from another underground feature, Ninu's Cave, which was discovered in 1888 in a similar fashion, when a well was being dug under a private house.

MainTimelineWikipediaGalleryBibliographyTableSearch

Wikimedia, Wikidata
Xerri’s Grotto
cave, Q233,

Location: 36.0513, 14.2614, KML, Cluster Map, Maps,
30 places

Loading map...

WWII Paola Shelter ⓘ
Calypso’s Cave ⓘ
cave in Malta
Għar ix-Xih ⓘ
cave in Malta
Ghar Lapsi ⓘ
bay, beach and cave in Malta, European Union
Għejzu Cave ⓘ
cave in Malta
Latnija cave ⓘ
cave in the north of Malta
Mixta Cave ⓘ
cave in Malta
Ninu's Cave ⓘ
cave in Malta
Ramla Bay ⓘ
bay
Slima Cave ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Unknown ⓘ
cave in Malta
Xerri's Grotto ⓘ
cave in Malta
Niche of the Madonna of Lourdes ⓘ
Unknown ⓘ
Unknown ⓘ
Unknown ⓘ
Gardjola Sally Port ⓘ
sallyport in Senglea

1998-01-01T00:00:00Z

1998 Niche of the Madonna of Lourdes

{"selectable":false,"showCurrentTime":false,"width":"100%","zoomMin":100000000000}

Frameless

Type	Subtype	Date	Description	Notes	Source

area	region	1964	Malta	country, sovereign state	Wikidata
site	bunker		WWII Paola Shelter	air-raid shelter	Wikidata
site	cave		Calypso’s Cave	cave	Wikidata
site	cave		Għar ix-Xih	cave	Wikidata
site	cave		Ghar Lapsi	cave	Wikidata
site	cave		Għejzu Cave	cave	Wikidata
site	cave		Latnija cave	cave	Wikidata
site	cave		Mixta Cave	cave	Wikidata
site	cave		Ninu's Cave	cave	Wikidata
site	cave		Ramla Bay	bay, cave	Wikidata
site	cave		Slima Cave	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Unknown	cave	Wikidata
site	cave		Xerri's Grotto	cave	Wikidata
site	cave	1998	Niche of the Madonna of Lourdes	wayside shrine, niche, cave	Wikidata
site	mine		Unknown	quarry	Wikidata
site	mine		Unknown	quarry	Wikidata
site	mine		Unknown	quarry	Wikidata
site	tunnel		Gardjola Sally Port	stairs, sally port, tunnel	Wikidata

Xerri's Grotto

From Underfoot

Q8043908

SPARQL Query Service