メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.160143051176 34.2200650446593, 135.159477399101 34.2200710647615, 135.159474572986 34.2194918047924, 135.159471567093 34.2190165025167, 135.160135244511 34.2190549830759, 135.160137627548 34.2196535386068, 135.160140540953 34.2198731675143, 135.160143051176 34.2200650446593)) ^^http://www.opengis.net/ont/geosparql#wktLiteral