メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.861517629587 35.2337359827515, 136.862445465896 35.2337990319141, 136.862428324157 35.2344216839457, 136.862430102705 35.2345136628982, 136.862231433559 35.2344992887459, 136.862193686978 35.2349797015385, 136.862113465211 35.2357938901286, 136.86132401961 35.2357459076549, 136.859996668073 35.2356609908745, 136.860181953874 35.2336198477006, 136.860257301731 35.2327714911109, 136.86159380938 35.2328679790373, 136.861517629587 35.2337359827515)) ^^http://www.opengis.net/ont/geosparql#wktLiteral