メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.358525777517 43.0690266553079, 141.358367334072 43.0696135865792, 141.358252174739 43.07005330458, 141.358221402246 43.0701709366189, 141.356671835559 43.0699680370888, 141.356808974232 43.0694160363683, 141.356909415476 43.0690259285951, 141.356973312498 43.0687742256684, 141.357970427545 43.0687640037535, 141.358589258164 43.0687568735337, 141.358525777517 43.0690266553079)) ^^http://www.opengis.net/ont/geosparql#wktLiteral