メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.373154619678 43.771717071325, 142.373427322698 43.7722427004683, 142.371893311598 43.772692063562, 142.371800102876 43.7725137201071, 142.371594892489 43.772160094217, 142.37133451568 43.7717227012726, 142.371272049943 43.7716116055454, 142.372849051296 43.7711750213703, 142.373154619678 43.771717071325)) ^^http://www.opengis.net/ont/geosparql#wktLiteral