メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.05104090374 42.913211442931, 143.051799207983 42.9132563558873, 143.051798413028 42.9132613551522, 143.051633116628 42.9144163114866, 143.051606907519 42.9146163094795, 143.050851926415 42.9145559683005, 143.050109113999 42.9144965923044, 143.050213310225 42.9137715840364, 143.050289187373 42.9131578275399, 143.05104090374 42.913211442931)) ^^http://www.opengis.net/ont/geosparql#wktLiteral