メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.568929496353 42.8786410682671, 141.568957025647 42.8786595892281, 141.569687442151 42.8791358643465, 141.570458488358 42.8796059772086, 141.570323390866 42.8802534200741, 141.570132399754 42.8809307730998, 141.570403874773 42.8823871255508, 141.570708916823 42.8827619072078, 141.569986437088 42.8827913704402, 141.569363429402 42.8827805585021, 141.569165880096 42.8831736610981, 141.568913877763 42.8836871986066, 141.568805483443 42.8838820038472, 141.568476807782 42.8834608684238, 141.567717902138 42.882410158642, 141.567498988608 42.8821104340207, 141.56715015843 42.8816105429545, 141.566940253235 42.8813096763118, 141.566673680312 42.8809528379827, 141.566088326063 42.8801571207176, 141.566159353722 42.88003819207, 141.566440247053 42.879567806182, 141.566670424852 42.879182288651, 141.566950955468 42.8787180886076, 141.567259020559 42.8782541226452, 141.567275892636 42.8782286933809, 141.567567033846 42.8777900853759, 141.568929496353 42.8786410682671)) ^^http://www.opengis.net/ont/geosparql#wktLiteral