メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.789630064233 35.3927322430015, 136.787600214615 35.3930276433251, 136.787614836561 35.3908350011661, 136.789619695538 35.3908700103424, 136.789626012281 35.391084389768, 136.790111427606 35.3910906232972, 136.790113201574 35.3911159099078, 136.790107303536 35.3922967026342, 136.789643459545 35.3923658168252, 136.789630064233 35.3927322430015)) ^^http://www.opengis.net/ont/geosparql#wktLiteral