メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.378130478384 43.0315015740186, 141.379487534561 43.0317562259013, 141.379254093435 43.0321838895496, 141.379019862929 43.0326264553717, 141.379051042988 43.0327198104866, 141.379092498407 43.0329476444364, 141.379131421753 43.0331444434946, 141.377552700249 43.0330918458176, 141.377533241127 43.0330916975601, 141.376781367361 43.0330619844493, 141.376723402234 43.0321595547178, 141.376709120181 43.0320984687486, 141.37664712303 43.0316768576991, 141.376609973522 43.0313690892084, 141.376583684388 43.0312015026831, 141.376581179158 43.0311888236443, 141.377142074601 43.0313056992386, 141.378097987905 43.0314942229299, 141.378130478384 43.0315015740186)) ^^http://www.opengis.net/ont/geosparql#wktLiteral