メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.745572043205 35.4130186744961, 136.745370821691 35.413006916197, 136.745388790853 35.4129008900543, 136.744903074329 35.4128960274333, 136.74449931793 35.4127616286408, 136.744702421344 35.4123784036034, 136.745294916278 35.4125921551439, 136.745632558426 35.4126456180928, 136.745572043205 35.4130186744961)) ^^http://www.opengis.net/ont/geosparql#wktLiteral