メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.860768723069 35.258855927542, 136.860762921869 35.259881000383, 136.86075016722 35.2604285829938, 136.860008082018 35.2606066311125, 136.860014151082 35.2598764931025, 136.859655467848 35.2598683278404, 136.859288016835 35.2598583738002, 136.859274215845 35.2588511378369, 136.859280880717 35.2588367177077, 136.859276500239 35.2579603537505, 136.859298348174 35.2571346204028, 136.859760447696 35.257137630835, 136.860790740156 35.257145389615, 136.860783020412 35.2576443930605, 136.860768723069 35.258855927542)) ^^http://www.opengis.net/ont/geosparql#wktLiteral