メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.406609349531 43.0301531306083, 141.407448154833 43.0304629918932, 141.407867854981 43.0306385296626, 141.407436147729 43.0312286641559, 141.407188638599 43.0317036154933, 141.406704751588 43.0316365452415, 141.406542933554 43.0316290233261, 141.406241368119 43.031591426723, 141.406053594677 43.0315611368813, 141.405721191633 43.0314582554833, 141.40474357543 43.0311197876718, 141.405023613751 43.0306926958568, 141.405156799539 43.0304949942292, 141.405318337464 43.0302430653417, 141.40560931244 43.029807894719, 141.406609349531 43.0301531306083)) ^^http://www.opengis.net/ont/geosparql#wktLiteral