メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.752053486062 35.4017100255202, 136.751361131342 35.4018282180481, 136.751321615588 35.4016765348319, 136.751007843765 35.400634272735, 136.750998905527 35.4006079744168, 136.751338976325 35.4005397739729, 136.751406661137 35.4008080316208, 136.751827324695 35.4007387671923, 136.751841620673 35.4008357869571, 136.751816758988 35.4008788708877, 136.751857862001 35.4010399258992, 136.752053486062 35.4017100255202)) ^^http://www.opengis.net/ont/geosparql#wktLiteral