メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.756531391556 35.4202592841519, 136.756429326653 35.4202750305507, 136.756437836003 35.420310550919, 136.756290034576 35.4203290310195, 136.756284451144 35.4202934853478, 136.756058437972 35.4203234967775, 136.755949326962 35.4197431832654, 136.756004935732 35.4197361175921, 136.755966001938 35.4195421894877, 136.756145059329 35.4195176895565, 136.756190597766 35.4198089248662, 136.756441670289 35.4197653724958, 136.756531391556 35.4202592841519)) ^^http://www.opengis.net/ont/geosparql#wktLiteral