メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.741900539452 35.4149230351874, 136.741099795843 35.4147067030672, 136.740878903255 35.4146728272313, 136.740906661215 35.4145796532946, 136.741028018572 35.4142550890045, 136.741145730763 35.4139199835291, 136.741267448782 35.4135838013026, 136.742371450697 35.4139872832315, 136.741900539452 35.4149230351874)) ^^http://www.opengis.net/ont/geosparql#wktLiteral