メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.854966123406 35.2084903956483, 136.854412940148 35.2090289186845, 136.851441322074 35.2069588345314, 136.851858304477 35.206463565021, 136.853274327152 35.2068509789826, 136.853912891593 35.207032001059, 136.85483581691 35.2072960776146, 136.854966123406 35.2084903956483)) ^^http://www.opengis.net/ont/geosparql#wktLiteral