メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.993489392386 34.985506027126, 136.994081612142 34.9858041430913, 136.993584556937 34.9864682355747, 136.992897232233 34.9861110335412, 136.992606986675 34.9859764536676, 136.992311832558 34.985831513001, 136.99290310905 34.9851788303581, 136.99316878289 34.9853335859194, 136.993489392386 34.985506027126)) ^^http://www.opengis.net/ont/geosparql#wktLiteral