メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.046241459691 42.9095984398587, 143.046178017456 42.9095941687789, 143.044706485428 42.9094988027737, 143.044683888187 42.9094973415531, 143.043243353023 42.909405047862, 143.043250564729 42.9093482391164, 143.043284591507 42.9090957897419, 143.04344352964 42.9079569127191, 143.044848742689 42.9080430467646, 143.045667013872 42.9080945543487, 143.046412203186 42.908147545868, 143.046507093416 42.9081533573548, 143.046255584939 42.9095364485255, 143.046241459691 42.9095984398587)) ^^http://www.opengis.net/ont/geosparql#wktLiteral