メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.782321466472 35.4435242484465, 136.782045022316 35.4435247481367, 136.782046973677 35.4437385901141, 136.780144466058 35.4438432889278, 136.780141309188 35.4436217671862, 136.780129274333 35.4434484204303, 136.780097223291 35.4433576151395, 136.780094676352 35.4433233818046, 136.780212042243 35.4433070657504, 136.780214607265 35.4433465101448, 136.780460869336 35.4433232789811, 136.782435254406 35.4432109127494, 136.782386384339 35.4433089618968, 136.782321466472 35.4435242484465)) ^^http://www.opengis.net/ont/geosparql#wktLiteral