メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.733225580356 35.1042153532917, 136.731845754111 35.1043866015128, 136.731207465396 35.1044492357154, 136.730757433641 35.1044740914835, 136.73075024361 35.1040874206707, 136.731181744804 35.1040736941042, 136.731613359513 35.1040390505193, 136.732185367962 35.1039830075737, 136.732488286012 35.1039450805732, 136.733062863135 35.1038490398348, 136.733174289813 35.1038285230455, 136.733225580356 35.1042153532917)) ^^http://www.opengis.net/ont/geosparql#wktLiteral