メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.391528867929 38.4031933251529, 140.393455595914 38.403312851744, 140.393258420267 38.4048739873142, 140.393185292381 38.405585740824, 140.393126811135 38.4062059065971, 140.391215502112 38.4060764307504, 140.388673608361 38.4059180841986, 140.38871916889 38.4054004987846, 140.388752877935 38.4050560171179, 140.388818606962 38.4045385065178, 140.38889137175 38.4037152672932, 140.388964906845 38.4030197098049, 140.390407227538 38.4031087450403, 140.391216816592 38.4031738578215, 140.391528867929 38.4031933251529)) ^^http://www.opengis.net/ont/geosparql#wktLiteral