メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.964074475025 43.5503394956885, 144.964465607993 43.5505839116337, 144.96445123989 43.550595468877, 144.963704830142 43.5512104164207, 144.963310489321 43.5509377000838, 144.962947541599 43.5506922247287, 144.962858920001 43.55063062006, 144.963601805926 43.5500319000678, 144.964074475025 43.5503394956885)) ^^http://www.opengis.net/ont/geosparql#wktLiteral