メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.923737660559 35.1835943428421, 136.923701840909 35.1835898336515, 136.92319872982 35.1837181093506, 136.922729377267 35.1838158879455, 136.922558571112 35.1838370193764, 136.922317542975 35.1838123038959, 136.92230239134 35.1837877657373, 136.922332411537 35.1829051576434, 136.922382332717 35.1828911748951, 136.92238895499 35.1828895514331, 136.922383462719 35.182792967631, 136.922415314614 35.1827929044902, 136.922416674441 35.1826887313172, 136.922413968743 35.1826892080578, 136.92235083334 35.18268801312, 136.922324543353 35.1825707421219, 136.922348404698 35.1825643366907, 136.922349788142 35.1825639645255, 136.922548064101 35.1825107402516, 136.922613995754 35.1825422828821, 136.923151109723 35.1823723896958, 136.923154019805 35.182367465843, 136.923179508645 35.1823773771252, 136.923402168918 35.1828480356632, 136.923613962285 35.1833388834972, 136.923737660559 35.1835943428421)) ^^http://www.opengis.net/ont/geosparql#wktLiteral