メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.13622861967 34.6610532805505, 135.136136759703 34.6611440350371, 135.135999034666 34.6612869273562, 135.135728928116 34.6615614077306, 135.135485856021 34.6618109182771, 135.135271836459 34.6616793593932, 135.1351263935 34.6615879152721, 135.134865727305 34.6614273644889, 135.134594065736 34.6612578702544, 135.135093630904 34.6607362265854, 135.135150253321 34.6606682421484, 135.135339387589 34.6604821914646, 135.135383436118 34.6605247218363, 135.135995377955 34.6609083272855, 135.13622861967 34.6610532805505)) ^^http://www.opengis.net/ont/geosparql#wktLiteral