メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.959493595612 43.5484057284116, 144.958745872613 43.5490134670433, 144.958483918158 43.5488333692756, 144.958154350099 43.5486201359565, 144.957807507591 43.5483837894096, 144.957730530389 43.5483401537194, 144.958453758363 43.5477379956711, 144.958576011495 43.5478254558991, 144.958883004242 43.5480182693203, 144.95925377912 43.5482535866584, 144.959493595612 43.5484057284116)) ^^http://www.opengis.net/ont/geosparql#wktLiteral