メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.872420217393 35.2553348643106, 136.873236128613 35.2552841666726, 136.87325420438 35.255283013362, 136.87369982138 35.2552593729649, 136.87373827681 35.2554517211567, 136.873687656771 35.2554781482407, 136.873896084945 35.2564197177661, 136.873431152843 35.2564471859706, 136.8727162094 35.2564817946245, 136.872234651681 35.2565066129948, 136.871819423261 35.2565349675696, 136.871766118511 35.2561003945303, 136.871678008141 35.2553976337086, 136.872420217393 35.2553348643106)) ^^http://www.opengis.net/ont/geosparql#wktLiteral