メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.206655937358 36.6673848726256, 137.206705202979 36.6681905093819, 137.206749495573 36.668914969849, 137.206789244435 36.6694904534935, 137.206822646186 36.6699739873468, 137.206160160112 36.6699694959742, 137.205015957431 36.6699616379993, 137.204120682442 36.6699554522533, 137.204080074343 36.6693901766235, 137.204047576692 36.6689158619567, 137.204007005696 36.6684026144725, 137.203962400002 36.6679185164827, 137.203929890828 36.6674182218589, 137.203912912055 36.666833224137, 137.204865166478 36.666826724939, 137.20660923067 36.6668230494355, 137.206655937358 36.6673848726256)) ^^http://www.opengis.net/ont/geosparql#wktLiteral