メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.106341720347 35.0366469636003, 137.106535309319 35.0363002657909, 137.107084244824 35.0368272681589, 137.107034692688 35.0378344365786, 137.106567914265 35.0379736590007, 137.106177504966 35.0376256944727, 137.10594513102 35.0374578202529, 137.106135571915 35.0370580931674, 137.104280947954 35.0367505253882, 137.104377787349 35.0363365221298, 137.106341720347 35.0366469636003)) ^^http://www.opengis.net/ont/geosparql#wktLiteral