メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.806645062415 35.241972477602, 136.806647328462 35.2425317210835, 136.806643650755 35.2426874182734, 136.805939212831 35.2426784934051, 136.805942231797 35.2426464593332, 136.80595517402 35.2425312133348, 136.805959583192 35.2419728342604, 136.806645062415 35.241972477602)) ^^http://www.opengis.net/ont/geosparql#wktLiteral