メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.484440055308 35.0295358935657, 138.484639662648 35.0304078651825, 138.483629170013 35.0309302420532, 138.483577579153 35.0309576320102, 138.482924223392 35.0313055271228, 138.48265397644 35.030011900439, 138.482531330984 35.0294283320804, 138.482447413078 35.0290211154702, 138.483173739368 35.0287958431817, 138.484229608972 35.0284505278017, 138.484440055308 35.0295358935657)) ^^http://www.opengis.net/ont/geosparql#wktLiteral