メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.870958163535 35.2381640041939, 136.870908753545 35.2381634963714, 136.870310242252 35.2381692112075, 136.870360028432 35.2377385498374, 136.870475842219 35.2370607224305, 136.870750479516 35.2370230855737, 136.870811661111 35.2370164045756, 136.870954570266 35.2370297831854, 136.871013690535 35.2379739608566, 136.871016967066 35.2381646071291, 136.870958163535 35.2381640041939)) ^^http://www.opengis.net/ont/geosparql#wktLiteral