メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.058318624487 34.8782056181915, 137.057580501595 34.8782196094572, 137.057389541011 34.8773654896077, 137.057872280818 34.8771983013461, 137.058280085589 34.8770675260329, 137.058733869356 34.8769100979551, 137.058948555608 34.8768359854267, 137.059104215344 34.8767905553779, 137.059339172333 34.8767276583399, 137.059791813515 34.8767883424336, 137.059950906615 34.8768215128589, 137.060149814297 34.8776526737763, 137.060145742797 34.8781894779122, 137.058933148281 34.878200175739, 137.058318624487 34.8782056181915)) ^^http://www.opengis.net/ont/geosparql#wktLiteral