メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.923517263657 35.1329832780953, 136.923416773263 35.1335157005608, 136.923368758368 35.1337701204122, 136.923362905834 35.1337706718839, 136.922475869865 35.1336589965679, 136.922474802574 35.1334207451207, 136.922472889302 35.1329921319324, 136.922464880736 35.1324804047026, 136.923011345683 35.1324726475311, 136.923018327045 35.1324386466346, 136.923524492041 35.1324335515816, 136.923517263657 35.1329832780953)) ^^http://www.opengis.net/ont/geosparql#wktLiteral