メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.776148888818 35.3781402690896, 136.776077915252 35.3792166507516, 136.776041154105 35.3797335704081, 136.774119902189 35.379669420087, 136.77414690582 35.3790129613121, 136.774200484966 35.3780800417381, 136.774651265013 35.3780938388232, 136.776148888818 35.3781402690896)) ^^http://www.opengis.net/ont/geosparql#wktLiteral