メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.871892910123 35.1157651248263, 136.871870750983 35.1161877881963, 136.871855242501 35.1165905391023, 136.871597838092 35.116590326416, 136.870375532598 35.1165585001921, 136.870123979767 35.1165518209886, 136.870156203501 35.1157261182534, 136.870168886893 35.1152783664821, 136.871905604344 35.1153173706924, 136.871892910123 35.1157651248263)) ^^http://www.opengis.net/ont/geosparql#wktLiteral