メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.363867404566 43.7381755689659, 142.36458261765 43.7383861143299, 142.363946644902 43.7395295991033, 142.363264255724 43.7407008145901, 142.362567973971 43.7404925276186, 142.362548151494 43.7404866064677, 142.361853015477 43.7402786650683, 142.362525493247 43.7390853331242, 142.363159744442 43.7379610034236, 142.363872177647 43.738167125618, 142.363867404566 43.7381755689659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral