メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.153836849912 34.6682118240319, 135.153802227993 34.6682448786392, 135.153494240143 34.6685466977014, 135.152552452125 34.6679220018202, 135.152600904406 34.667856318121, 135.153083013059 34.6675082544921, 135.154469642396 34.6676025780973, 135.154535148656 34.6676066435592, 135.154503067342 34.6676332924101, 135.154037325488 34.668020176421, 135.153836849912 34.6682118240319)) ^^http://www.opengis.net/ont/geosparql#wktLiteral