メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.904809985048 37.0575001408031, 140.904097366164 37.0583490083901, 140.90406073278 37.0583486344017, 140.902293718174 37.058330992298, 140.902241449995 37.0583306180601, 140.902404976945 37.0576971239082, 140.902448958189 37.0576328070149, 140.902576943283 37.0571643607775, 140.902743919993 37.0564579745414, 140.902744322813 37.0564554370844, 140.903887291186 37.0566154201274, 140.905342769873 37.0568119906554, 140.905070530743 37.0571898044213, 140.904809985048 37.0575001408031)) ^^http://www.opengis.net/ont/geosparql#wktLiteral