メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.769028244056 35.4376982897833, 136.767336636442 35.4390504838947, 136.767202156194 35.4389697642579, 136.766689787533 35.4390140325015, 136.766232999114 35.4390418617438, 136.765488546376 35.4390371241092, 136.764629625362 35.4389507404792, 136.764756348583 35.4385306486986, 136.76483428443 35.43814521924, 136.764904743222 35.4377311735779, 136.76530720916 35.4352683498896, 136.76549721128 35.4353860119773, 136.766217989144 35.4357782919675, 136.767289915247 35.4364850140567, 136.768858346265 35.4375848150826, 136.769028244056 35.4376982897833)) ^^http://www.opengis.net/ont/geosparql#wktLiteral