メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.14299155223 35.0607511391415, 137.143457121245 35.0612366307748, 137.144543757637 35.0623140552974, 137.144271417133 35.062398648642, 137.143657557042 35.062644866143, 137.142585609554 35.0630635189818, 137.141554617828 35.0612542137393, 137.141304682031 35.0607308770983, 137.142563786558 35.060282063102, 137.142606182584 35.0602662972862, 137.142627526885 35.0603228560425, 137.142653606228 35.0603657523083, 137.142703407293 35.0604185134841, 137.14299155223 35.0607511391415)) ^^http://www.opengis.net/ont/geosparql#wktLiteral