メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.848056842413 35.4337348215595, 136.847615115047 35.4357687636667, 136.847165874749 35.4375935056907, 136.843868416535 35.4370530189875, 136.844195637154 35.4366776371645, 136.845400194618 35.4352962018066, 136.845633230572 35.4350129561741, 136.845859760699 35.4347853249253, 136.845902834028 35.4347022734441, 136.845922700555 35.4346392296649, 136.845965164609 35.4345304016763, 136.846056781629 35.4341937897161, 136.847206406891 35.4337394480203, 136.848056842413 35.4337348215595)) ^^http://www.opengis.net/ont/geosparql#wktLiteral