メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.100244603875 43.8227655566726, 144.098960767571 43.8231350216273, 144.098218586049 43.8233504575654, 144.098133294944 43.8233751841272, 144.098058142284 43.8232436905244, 144.097450816636 43.822182870209, 144.097528925667 43.8221583827951, 144.098100046011 43.8219896353545, 144.098542770269 43.8218587915614, 144.099032069685 43.8217076785297, 144.099533910969 43.8215476580831, 144.099568163614 43.8216063651105, 144.100244603875 43.8227655566726)) ^^http://www.opengis.net/ont/geosparql#wktLiteral