メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.232865293736 34.7217613931121, 135.233653281773 34.721683447755, 135.233469017724 34.7220589197673, 135.233413144294 34.7221922994542, 135.233218620646 34.7226286960301, 135.232514982743 34.7224310680589, 135.231964702879 34.7222796303981, 135.232186403407 34.721831766523, 135.232757565719 34.7217774017371, 135.232865293736 34.7217613931121)) ^^http://www.opengis.net/ont/geosparql#wktLiteral