メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.62857328108 34.9541880540015, 136.628652675697 34.9546769599614, 136.628803098936 34.9557069983995, 136.627453947804 34.9558861532784, 136.627408186947 34.9558922342134, 136.626734816987 34.9559775394714, 136.625629411042 34.9561010499086, 136.625572133451 34.9558242198438, 136.625491444873 34.955100800758, 136.625354894895 34.9540838535157, 136.626311856099 34.9539482934325, 136.626342819538 34.9539422179035, 136.62693748195 34.9538576745741, 136.628492328959 34.9536349991838, 136.62857328108 34.9541880540015)) ^^http://www.opengis.net/ont/geosparql#wktLiteral