メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.713469436934 35.4284578607367, 136.712230555549 35.4287091511722, 136.709075312966 35.4293822972311, 136.709095329381 35.4269630436971, 136.713970414989 35.4269972476747, 136.71389175519 35.427501233841, 136.713824596942 35.42756443047, 136.71368669601 35.4276087718022, 136.713409971183 35.4276241068827, 136.713469436934 35.4284578607367)) ^^http://www.opengis.net/ont/geosparql#wktLiteral