メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.329024348225 37.3945819839119, 140.328492850275 37.3949659019753, 140.32755659422 37.394204727458, 140.328077724131 37.3937934007106, 140.328264434445 37.3939496075343, 140.328632373653 37.3942665503853, 140.329024348225 37.3945819839119)) ^^http://www.opengis.net/ont/geosparql#wktLiteral