メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.745279624006 35.4152283070188, 136.745261365474 35.415422920354, 136.745245536876 35.4155802562909, 136.745063057912 35.4155776125133, 136.74336015886 35.4149662184424, 136.74345410634 35.4147987697344, 136.743530844107 35.4146325631959, 136.745279624006 35.4152283070188)) ^^http://www.opengis.net/ont/geosparql#wktLiteral