メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.182323567784 34.6831558575992, 135.182364557996 34.6831623327704, 135.18259464031 34.6837850018401, 135.182559336289 34.6838010240495, 135.18217348904 34.6839547132895, 135.181883124093 34.6841077356793, 135.181834133232 34.6841193457025, 135.181703749298 34.6839084070049, 135.181446240568 34.6835383415004, 135.18129967404 34.6833455446861, 135.180772834473 34.6825153456938, 135.181839483377 34.6819715343817, 135.182051187445 34.682398261011, 135.182132395707 34.682602781241, 135.182323567784 34.6831558575992)) ^^http://www.opengis.net/ont/geosparql#wktLiteral