メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.457723028801 43.0464209607977, 144.457678929823 43.0466723163948, 144.456805714796 43.046878493209, 144.456705717214 43.0466569947524, 144.456497112623 43.0462198600748, 144.456222163453 43.0455903242428, 144.455929180044 43.0449978469693, 144.45577941068 43.0446449529228, 144.455610123578 43.04428779292, 144.457261206466 43.0438763069805, 144.457318310046 43.0438911693914, 144.457533328082 43.0438231610285, 144.457743555445 43.0439850033196, 144.457754078227 43.0445239259692, 144.4578273415 43.0454110220961, 144.457829797842 43.0456023340401, 144.457789062093 43.0460434367206, 144.457723028801 43.0464209607977)) ^^http://www.opengis.net/ont/geosparql#wktLiteral