メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.93119889554 34.8991326777671, 136.930632890649 34.8991662347832, 136.930022485602 34.8991969570373, 136.930032267366 34.8990487205037, 136.930040985139 34.8988609697547, 136.930121529043 34.8988087971531, 136.930139928901 34.898741219826, 136.930121939522 34.8986642746691, 136.930396801678 34.8982961759995, 136.93061865437 34.8979612875292, 136.930617234739 34.8978669078293, 136.931284315704 34.8979150335455, 136.931494991988 34.8991144437051, 136.93119889554 34.8991326777671)) ^^http://www.opengis.net/ont/geosparql#wktLiteral