メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.353428277641 43.1089599347295, 141.35342173642 43.1089806303177, 141.353283283957 43.1096207228558, 141.352545260367 43.109501952625, 141.352083540296 43.1094383604663, 141.351540163484 43.1093533827174, 141.351823654734 43.1082020865341, 141.352132839174 43.108240016532, 141.352358653026 43.108275325181, 141.352622088486 43.1083109278394, 141.353537471232 43.1084434610951, 141.35347576192 43.108731953928, 141.353428277641 43.1089599347295)) ^^http://www.opengis.net/ont/geosparql#wktLiteral