メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.215531498955 36.6991975064233, 137.215569611386 36.699244381957, 137.21602411831 36.6990476892015, 137.216391807967 36.6996169821406, 137.216493212826 36.6997759166047, 137.215224147936 36.7001886709017, 137.214826657512 36.7003543579875, 137.21497135318 36.7005647437067, 137.213914265616 36.7009847895703, 137.213406552561 36.7001974969565, 137.212945956075 36.7003753833049, 137.213032414632 36.6993386179078, 137.213062510843 36.6990258608279, 137.213083828627 36.6987872453039, 137.213137600106 36.6979698067229, 137.213614304812 36.697820148118, 137.214193636791 36.6981276633543, 137.214658302035 36.6984115655233, 137.215174930778 36.698799012273, 137.215531498955 36.6991975064233)) ^^http://www.opengis.net/ont/geosparql#wktLiteral