メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.68896326639 35.3192851949181, 136.688581412248 35.3193451009491, 136.687977053617 35.3194422277384, 136.686751335027 35.3196336566395, 136.68646577581 35.3196756968323, 136.686124194723 35.3194202626578, 136.685723572724 35.3176668583262, 136.686029183452 35.3173938429413, 136.686256244991 35.3171956570937, 136.68896326639 35.3192851949181)) ^^http://www.opengis.net/ont/geosparql#wktLiteral