メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.874721572956 35.1225928197668, 136.8747293344 35.1228434782792, 136.874725984366 35.1229596708804, 136.874715047649 35.1233395829602, 136.874247588345 35.1233322362103, 136.873336075641 35.1233449905032, 136.871997491317 35.1233648493982, 136.871969095959 35.1230263888539, 136.871939070772 35.122723770647, 136.871911945281 35.122288761211, 136.872386112837 35.1222162007743, 136.873295378555 35.1222526063273, 136.874491767846 35.122291823719, 136.874737972164 35.1222913032637, 136.874721572956 35.1225928197668)) ^^http://www.opengis.net/ont/geosparql#wktLiteral