メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.634721720438 42.6665625177157, 141.633576765166 42.6684058912094, 141.632889251056 42.6695027904776, 141.63183994074 42.6712163945762, 141.626182325941 42.6698964832924, 141.626607136473 42.6689197324802, 141.626951647603 42.6681276630051, 141.626958234693 42.6681123659833, 141.627931769746 42.6665182347348, 141.627940342702 42.6665044960504, 141.629073160341 42.6646632196996, 141.629082696681 42.6646483598973, 141.629337317347 42.6642495332287, 141.630345412972 42.6625842512241, 141.631219294126 42.662872850667, 141.632771924655 42.663385676783, 141.634140062291 42.6638375629745, 141.635392285532 42.6642511106122, 141.635975538566 42.6644437222825, 141.634721720438 42.6665625177157)) ^^http://www.opengis.net/ont/geosparql#wktLiteral