メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.150112404588 35.1028951011463, 137.149278284205 35.1047706150347, 137.147234873697 35.1041618161157, 137.146271964344 35.1038179379127, 137.146628223134 35.1030543147661, 137.146802005366 35.1027003879556, 137.145805123472 35.1024089599641, 137.146137083803 35.1016025753601, 137.147182698147 35.1014685616794, 137.147526651174 35.1012288256774, 137.148045879471 35.1015357731414, 137.149871177072 35.1020685989575, 137.150522513815 35.1019644781817, 137.150112404588 35.1028951011463)) ^^http://www.opengis.net/ont/geosparql#wktLiteral