メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.378858486332 43.0958753971281, 141.379260396667 43.0959435035505, 141.379738697641 43.0959982639254, 141.38023401544 43.0959764953218, 141.380730656894 43.0959628928861, 141.381324301354 43.0959371547159, 141.381107918767 43.0968840735528, 141.380515549121 43.0968190994875, 141.380038990644 43.096749235142, 141.379581397793 43.096688796399, 141.37948056597 43.0970855842135, 141.379015383228 43.0970053230739, 141.37885386128 43.0969784970266, 141.378189223955 43.096866476598, 141.378271131552 43.0964580131845, 141.378392920008 43.0958160184745, 141.378858486332 43.0958753971281)) ^^http://www.opengis.net/ont/geosparql#wktLiteral