メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.95956990527 43.5507923902636, 144.959344502679 43.550647184905, 144.958941521751 43.5503839408143, 144.958685813465 43.5502182154649, 144.959512125864 43.5495301384671, 144.959614410493 43.5495990507324, 144.960007518916 43.5498577796678, 144.960381206271 43.550105963673, 144.95956990527 43.5507923902636)) ^^http://www.opengis.net/ont/geosparql#wktLiteral