メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.301096527535 43.1147725327068, 141.300671877933 43.1150182605007, 141.299268970936 43.1136978879442, 141.299297921913 43.1136694340445, 141.300458954833 43.113019517885, 141.301762824242 43.1123121905893, 141.302181256858 43.1120821619563, 141.302661915201 43.1118318292056, 141.303441594541 43.1125522462227, 141.304067869597 43.1131308043677, 141.303174814336 43.1136300754222, 141.302995291256 43.1137304276184, 141.301925124357 43.1143218321023, 141.301523311471 43.1145437702063, 141.301331311138 43.1146498537212, 141.301096527535 43.1147725327068)) ^^http://www.opengis.net/ont/geosparql#wktLiteral