メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.137973724509 34.6563228993984, 135.137923532875 34.6563768975443, 135.137804712782 34.6564993835079, 135.137504979596 34.656810123071, 135.137259331802 34.656650323565, 135.137007141612 34.6564836640592, 135.136525001415 34.6561585075114, 135.137278549813 34.6553940307499, 135.137492619315 34.655532347311, 135.137665522199 34.6556438908851, 135.137742881937 34.6556938070982, 135.138252852136 34.656023140724, 135.137973724509 34.6563228993984)) ^^http://www.opengis.net/ont/geosparql#wktLiteral