メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.634345016138 35.3588350594551, 136.634334996264 35.3589733257783, 136.633094949535 35.3589017275643, 136.633095436439 35.3588961193448, 136.633136986249 35.3584176879573, 136.634370824866 35.3584779896306, 136.634345016138 35.3588350594551)) ^^http://www.opengis.net/ont/geosparql#wktLiteral