メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.337625407602 43.1684940449135, 141.338083660649 43.1692095344657, 141.338164058037 43.1693210122986, 141.338311106361 43.1695250109478, 141.338432833338 43.1696937135124, 141.338271599198 43.1697260561532, 141.338250685977 43.1700722703055, 141.338122131938 43.1702328730749, 141.337844633118 43.170110199135, 141.336072758488 43.1693266695703, 141.335755844266 43.1691865889066, 141.335517919747 43.1682148738672, 141.335592495135 43.168020586968, 141.336289002497 43.1680531186513, 141.336301772034 43.1680537123263, 141.337014797023 43.1680094315582, 141.337303602386 43.1679915355163, 141.337625407602 43.1684940449135)) ^^http://www.opengis.net/ont/geosparql#wktLiteral