メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1157057767 37.8086417618462, 139.115557561841 37.8086478461213, 139.112203062133 37.8087857771948, 139.112080905349 37.8067689593861, 139.11335313381 37.8067211250855, 139.115107983014 37.8066551202325, 139.115140269266 37.8071425938673, 139.11518157897 37.8074875757612, 139.115257606305 37.8076702682734, 139.115359802723 37.8078196415968, 139.115568734164 37.8080855562046, 139.115642029141 37.8082282121062, 139.115679463934 37.8083948958006, 139.1157057767 37.8086417618462)) ^^http://www.opengis.net/ont/geosparql#wktLiteral