メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.886806188319 43.0158899959175, 142.886726663033 43.0158413476631, 142.88636530151 43.01562012716, 142.885764479897 43.0152500796504, 142.885790695534 43.0152272182962, 142.886568695914 43.0145601191283, 142.886773295689 43.0143822457652, 142.887782546868 43.0150024997474, 142.887824455436 43.0150282883883, 142.887909192904 43.0150803538267, 142.887412412597 43.0155214786395, 142.887321682515 43.0154690950435, 142.886833924132 43.0158658592808, 142.886806188319 43.0158899959175)) ^^http://www.opengis.net/ont/geosparql#wktLiteral