メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.129609617555 43.6611308409742, 145.129776903397 43.6611815050889, 145.13023353949 43.6613196938192, 145.130589926664 43.661427535059, 145.130166503426 43.6623277151846, 145.129838124435 43.6622182507326, 145.129657988365 43.6621703375357, 145.129554167169 43.66213016765, 145.129588915969 43.6620709263469, 145.129066777014 43.6620296002883, 145.128760147464 43.6620061816779, 145.128763709107 43.6619672057236, 145.128869230965 43.6615811314019, 145.129079075724 43.6609703249651, 145.129609617555 43.6611308409742)) ^^http://www.opengis.net/ont/geosparql#wktLiteral