メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.05496257435 43.5558215465001, 142.055888519356 43.5558857770639, 142.056539666893 43.5559296702642, 142.05633630643 43.5561375178775, 142.05614087536 43.5565162295924, 142.055739152737 43.5571287660949, 142.05512896551 43.5576409115538, 142.05454509369 43.5580236351901, 142.053883734503 43.558470217829, 142.053748923251 43.5585390446589, 142.052855502417 43.5589953508727, 142.051211329508 43.5575452946547, 142.052000981176 43.5570996527046, 142.052006747197 43.5570627075382, 142.052052695172 43.5567684141795, 142.052056648473 43.556665889086, 142.052108629119 43.5562505097724, 142.052204780298 43.5555985687472, 142.054189069123 43.5557623857199, 142.05496257435 43.5558215465001)) ^^http://www.opengis.net/ont/geosparql#wktLiteral