メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.071945760002 35.2391724180057, 137.07096323719 35.2391781883926, 137.070556032253 35.2391834969705, 137.069740502748 35.2391893901216, 137.069737452625 35.2379131596239, 137.070243033419 35.2378834958394, 137.070352849369 35.2378742172058, 137.071470382894 35.2378141212001, 137.072003404058 35.2377882740274, 137.071962099301 35.2383501565289, 137.071945760002 35.2391724180057)) ^^http://www.opengis.net/ont/geosparql#wktLiteral