メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.401081278904 44.161878996556, 142.40046707006 44.1617929273263, 142.400379673482 44.1617798579763, 142.399185187877 44.1616011446221, 142.399623836796 44.1601021084681, 142.401487442801 44.1603905967865, 142.401217108706 44.1614463824523, 142.401155150349 44.1616553074671, 142.401101975317 44.1618031840282, 142.401081278904 44.161878996556)) ^^http://www.opengis.net/ont/geosparql#wktLiteral