メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.183903654625 34.2337794561406, 135.184558045755 34.2337740930302, 135.184548264333 34.2341562046094, 135.184208831625 34.2341438028291, 135.184210875515 34.2343544154979, 135.183902089998 34.2343472882306, 135.182541171841 34.234205659084, 135.182602274207 34.2338051538498, 135.182623801394 34.2336041364637, 135.183033717673 34.2336415235682, 135.183903225718 34.2337094416935, 135.183903654625 34.2337794561406)) ^^http://www.opengis.net/ont/geosparql#wktLiteral