メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.938813118481 34.8901404617274, 136.937432629228 34.8906447557446, 136.937417139949 34.8907677693116, 136.937298575508 34.8907110597613, 136.936417730726 34.8910275304365, 136.93492417072 34.8915787702566, 136.934919668041 34.8914238847965, 136.934930884914 34.8913477005466, 136.935013956785 34.8908611131783, 136.935077581167 34.8905433813774, 136.935886317902 34.8905224513031, 136.936212335955 34.8905209572917, 136.936141595639 34.8903099534377, 136.936515891606 34.8901670543102, 136.93678394835 34.8900765654493, 136.937463797785 34.889812747478, 136.938941881259 34.8892691945922, 136.939481422253 34.8898921763025, 136.938813118481 34.8901404617274)) ^^http://www.opengis.net/ont/geosparql#wktLiteral