メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.831624137494 35.5223742921291, 137.831301441613 35.5226895236223, 137.831107746123 35.5228994549745, 137.830821124543 35.5227490687547, 137.830717418078 35.5228837662517, 137.830538939979 35.5228530225159, 137.830274478832 35.5228245116642, 137.830303032594 35.5225703552467, 137.829691726775 35.5225231901653, 137.829741088046 35.5222064434963, 137.829857580626 35.5222175474711, 137.830099360961 35.5222386809198, 137.830353580378 35.5222608673208, 137.831024830755 35.5223241366701, 137.831506170088 35.5223644138446, 137.831624137494 35.5223742921291)) ^^http://www.opengis.net/ont/geosparql#wktLiteral