メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.166644368617 34.6660323323852, 135.166703662797 34.66650520574, 135.166317365687 34.6668819692475, 135.166037074581 34.6666765476499, 135.16561407068 34.666384207654, 135.165322866842 34.6661782957514, 135.164957490305 34.6659199283164, 135.165189806524 34.6656929677804, 135.165270911807 34.6656202940223, 135.1653172507 34.6656170191536, 135.166587486548 34.6655278904625, 135.166644368617 34.6660323323852)) ^^http://www.opengis.net/ont/geosparql#wktLiteral