メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.254311779585 43.1199171740091, 141.25467687293 43.1202443511284, 141.253934893557 43.1207077018857, 141.253487451129 43.1209467985784, 141.252910207003 43.1207480217078, 141.25244291397 43.1206073057406, 141.252328788378 43.1205819093437, 141.252174306367 43.1205290831237, 141.251746516517 43.1203975681492, 141.251146675493 43.120207517477, 141.252268823334 43.1195336953055, 141.252721806304 43.1192485868224, 141.253220666383 43.1189463635765, 141.254311779585 43.1199171740091)) ^^http://www.opengis.net/ont/geosparql#wktLiteral