メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.033860714166 43.5690007558274, 142.033840848672 43.5691603251272, 142.033798449533 43.5694817831706, 142.03376784206 43.5697989386018, 142.033581399494 43.5713242065814, 142.032644736567 43.5711760711648, 142.03177530369 43.5709994317378, 142.032021266072 43.569489223571, 142.03204443414 43.5693468890545, 142.032062755444 43.5692344345191, 142.032085607356 43.5690527166871, 142.032107663502 43.5688773657017, 142.03217146424 43.5683701560584, 142.033056415684 43.5684365831651, 142.033922797861 43.5685024748059, 142.033860714166 43.5690007558274)) ^^http://www.opengis.net/ont/geosparql#wktLiteral