メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.102157781344 37.8701780403277, 139.10178250299 37.8708025052876, 139.101775407077 37.8708143682938, 139.101401742747 37.8714362883883, 139.1006491577 37.8711510923182, 139.100258481975 37.8710030026971, 139.100041855067 37.8709206194761, 139.100418431201 37.8702957315032, 139.100802807483 37.8696640449971, 139.101191562841 37.8690251560008, 139.1015800645 37.8683831710149, 139.101782755312 37.8689797672784, 139.101985950443 37.869577908582, 139.102178280061 37.8701438662691, 139.102157781344 37.8701780403277)) ^^http://www.opengis.net/ont/geosparql#wktLiteral