メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.187094850602 34.2274091819378, 135.18696727372 34.2278906644949, 135.185117483942 34.2275910078569, 135.185266785287 34.2272675837801, 135.185319951693 34.2271353816538, 135.185964102515 34.2272382694741, 135.186083730012 34.2266489722528, 135.187228656044 34.2269057651817, 135.187145697794 34.2272179399555, 135.187094850602 34.2274091819378)) ^^http://www.opengis.net/ont/geosparql#wktLiteral