メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.758815617087 35.4234126817985, 136.758761306086 35.4234349279556, 136.758672102478 35.4232876992833, 136.758336439975 35.4229666929196, 136.758467614141 35.4229367472171, 136.758350525824 35.4225015117374, 136.758557982983 35.4224590393534, 136.758476735019 35.4221673703433, 136.758685410955 35.4221219093762, 136.758740904903 35.4223174064938, 136.759262549883 35.4222126058177, 136.759313718975 35.4224045645662, 136.759113732922 35.4224500557384, 136.759207712624 35.4227593370254, 136.759125104863 35.4227803619205, 136.75917844394 35.4229770114918, 136.759121851697 35.4229911531109, 136.7591461644 35.4230834132417, 136.758960083826 35.4231259583198, 136.758753165814 35.4231633983079, 136.758815617087 35.4234126817985)) ^^http://www.opengis.net/ont/geosparql#wktLiteral