メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.753845794627 35.4084438141936, 136.752924163147 35.408569544597, 136.75273975807 35.4076578814272, 136.753243684154 35.4075272091309, 136.753329101901 35.4077199604544, 136.753449798668 35.4076907242363, 136.753552250728 35.4078909274485, 136.753459672435 35.4079218793626, 136.753513207325 35.4080586071532, 136.753696133374 35.4080378221625, 136.753845794627 35.4084438141936)) ^^http://www.opengis.net/ont/geosparql#wktLiteral