メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.130476134364 43.5414248556534, 142.130118531196 43.5414611377935, 142.128851285073 43.5415088479161, 142.127802100723 43.5414530730166, 142.127812675172 43.5413275919699, 142.127752364085 43.5412439509843, 142.127685927181 43.5411954658019, 142.127117718385 43.541032122457, 142.127093706699 43.5409440877294, 142.12709429887 43.5406536883553, 142.127609316749 43.5373565086011, 142.131048430376 43.5376122605958, 142.130476134364 43.5414248556534)) ^^http://www.opengis.net/ont/geosparql#wktLiteral