メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.890389895205 35.2445814109905, 136.890351502446 35.2445811111048, 136.890336376943 35.2457853866702, 136.889983322771 35.245854012997, 136.889496155833 35.2459300763781, 136.889453687646 35.2445897529922, 136.889476049725 35.2445898747564, 136.889452625219 35.2431908508488, 136.890409952873 35.24318340163, 136.890389895205 35.2445814109905)) ^^http://www.opengis.net/ont/geosparql#wktLiteral