メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.571700957714 42.9838655127407, 141.572054437759 42.9838043057434, 141.572135177667 42.9840410984213, 141.572276213906 42.9844357207688, 141.572422346494 42.9848243242701, 141.572563198004 42.9852361064862, 141.572702253373 42.9856589896096, 141.572925786072 42.9862885854332, 141.572594585026 42.9862215003519, 141.57223177719 42.9861495856777, 141.571597843736 42.9860228935912, 141.571363718196 42.9859791676177, 141.570996787503 42.9859032858197, 141.570343072196 42.9857811819287, 141.569947531863 42.9856980231867, 141.569577132685 42.9856241561993, 141.569477523216 42.9842621507112, 141.570207532139 42.9841265951179, 141.571071392192 42.9839796595228, 141.571700957714 42.9838655127407)) ^^http://www.opengis.net/ont/geosparql#wktLiteral