メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.157681287144 34.6539571883387, 135.157646548241 34.6540295423645, 135.15731270047 34.6539168631623, 135.15648638896 34.6536475003535, 135.156902224411 34.6526755916433, 135.156949885126 34.6525310316474, 135.158044132752 34.652868442501, 135.157951700238 34.6531733196684, 135.157740144536 34.6538418513407, 135.157681287144 34.6539571883387)) ^^http://www.opengis.net/ont/geosparql#wktLiteral