メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.780129546152 35.4145610512829, 136.780218127752 35.4148631516245, 136.78013009522 35.4148697382148, 136.77659964093 35.4149962998444, 136.77658766035 35.4146971542318, 136.776574352883 35.4144058210277, 136.77777131495 35.4143680404572, 136.778965618733 35.4143192887827, 136.77989253969 35.4142940050673, 136.779982613524 35.414291932898, 136.780032097644 35.4143956777043, 136.780129546152 35.4145610512829)) ^^http://www.opengis.net/ont/geosparql#wktLiteral