メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.038612078326 42.9104790325666, 143.038592267382 42.9108009416717, 143.038568358693 42.9111882849235, 143.038373274393 42.9111704251387, 143.037603479394 42.911100035609, 143.036992807653 42.911048733976, 143.037003128014 42.9109198848827, 143.036984336865 42.9108830188465, 143.036929826891 42.9108739689274, 143.03696243308 42.9106244157985, 143.037049577238 42.9099578363282, 143.037733256307 42.9100065263592, 143.038531619697 42.9100634266855, 143.038637251608 42.9100709991462, 143.038612078326 42.9104790325666)) ^^http://www.opengis.net/ont/geosparql#wktLiteral