メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.832744864397 35.9204882150578, 139.832757651759 35.9204924303295, 139.83328382963 35.9206577666866, 139.83263132059 35.9219722531898, 139.832110997211 35.9218130403179, 139.8310661688 35.9214708006318, 139.829878316286 35.921085666964, 139.829537015196 35.9209767920202, 139.82800788247 35.920470529172, 139.827655417493 35.9203548444534, 139.827882285514 35.9199362892216, 139.828781814641 35.9181144031105, 139.829947875115 35.9184913845312, 139.832145345019 35.9192024268665, 139.833212730208 35.9195494299772, 139.832744864397 35.9204882150578)) ^^http://www.opengis.net/ont/geosparql#wktLiteral