メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.367075084718 43.7352832519242, 142.367595389897 43.735423707509, 142.36812471243 43.7355745950739, 142.368528189068 43.7356989582908, 142.368172657157 43.7363282826994, 142.367976847896 43.7366725340814, 142.367901734184 43.7367925981352, 142.366982499795 43.7371052987327, 142.366687835153 43.7370111242688, 142.366171473824 43.7368564709184, 142.365689561744 43.736711045111, 142.366029776948 43.736089320688, 142.366604355106 43.7350705945112, 142.367032542024 43.7343389453683, 142.367525728391 43.7344827177306, 142.367075084718 43.7352832519242)) ^^http://www.opengis.net/ont/geosparql#wktLiteral