メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.838203024865 35.4157842823552, 136.837239944835 35.4157985352026, 136.836325035668 35.4157868199333, 136.835674544704 35.4157630390878, 136.835052318772 35.4158432040836, 136.835071203895 35.4156366753642, 136.835364851242 35.4119317997894, 136.838508561912 35.412044155135, 136.838326494943 35.4141889408279, 136.838203024865 35.4157842823552)) ^^http://www.opengis.net/ont/geosparql#wktLiteral