メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.048625063325 42.9083000989658, 143.048647819046 42.9083026834525, 143.049407788592 42.9083589246649, 143.049517728183 42.9083670197381, 143.050194700029 42.9084159575266, 143.050042107832 42.9094220830845, 143.050032170339 42.909489601079, 143.049990832561 42.9097702379146, 143.049979180565 42.9098457162961, 143.049226034697 42.9097967454544, 143.047660307095 42.9096936480241, 143.047668892023 42.9096249431451, 143.047698764079 42.909448621071, 143.047828034642 42.9086859429668, 143.047843772112 42.9085932043356, 143.047902583618 42.908246263434, 143.048625063325 42.9083000989658)) ^^http://www.opengis.net/ont/geosparql#wktLiteral