メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.346602782971 44.4762987493093, 142.344986127649 44.4759056434309, 142.344498943702 44.4757871443157, 142.343611241907 44.4755738010054, 142.343495417784 44.4755255555957, 142.342227592413 44.4752225434713, 142.342419505691 44.4748166811566, 142.34288676768 44.4738638015386, 142.342946146996 44.4737351846723, 142.34695954485 44.474734388111, 142.34733128443 44.4748269192372, 142.346642822494 44.4762182070867, 142.346602782971 44.4762987493093)) ^^http://www.opengis.net/ont/geosparql#wktLiteral