メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.732414079367 35.4226000869908, 136.732578936576 35.4230442562086, 136.73276067758 35.4235167954221, 136.731900613133 35.4237240425145, 136.73138235115 35.4238483659593, 136.730163909948 35.4241459237639, 136.729530072729 35.4243161581239, 136.728925023283 35.4230041494406, 136.729550554659 35.4228486771817, 136.730103155943 35.4227049089371, 136.730496181469 35.4226077780175, 136.730882903901 35.422498616712, 136.731038894433 35.4224545693176, 136.731639471189 35.4223307905078, 136.732273653681 35.4221724132566, 136.732414079367 35.4226000869908)) ^^http://www.opengis.net/ont/geosparql#wktLiteral