メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.063906938147 34.8840495270188, 137.063842873162 34.8845457824003, 137.063778806467 34.8850356994001, 137.063683963038 34.8851351345648, 137.063589491787 34.8850811077195, 137.063418681841 34.8850482852538, 137.062871450736 34.8849542943566, 137.061516785772 34.8847092462764, 137.061538797462 34.8846053122855, 137.061698898564 34.8838564430605, 137.061812508618 34.883313184093, 137.063975935357 34.8835105967785, 137.063906938147 34.8840495270188)) ^^http://www.opengis.net/ont/geosparql#wktLiteral