メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.105125232493 43.5372796039849, 142.102115708082 43.5388393500116, 142.10028344236 43.5373256565755, 142.099963262723 43.5371133076059, 142.098969980792 43.5366281845183, 142.098358384921 43.5364689595552, 142.097926009207 43.5364106067775, 142.097607543386 43.536406169811, 142.097646047191 43.5359621178034, 142.097770279077 43.5356390710812, 142.09845038478 43.5356708221652, 142.100253329529 43.5359677800492, 142.101325071776 43.5361456048601, 142.102803303361 43.5364712442088, 142.104211216284 43.536876944231, 142.104988017395 43.5372104039744, 142.105125232493 43.5372796039849)) ^^http://www.opengis.net/ont/geosparql#wktLiteral