メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.081532740168 43.5377929673303, 142.081374184646 43.5387923879069, 142.080110618999 43.5386955733337, 142.080241726916 43.5377192844066, 142.080206173231 43.5377169098648, 142.080137281443 43.5375133930007, 142.080118790718 43.5374602344755, 142.081629492679 43.5372981362822, 142.081645445838 43.5373686943119, 142.081984870653 43.5373480375603, 142.081984683803 43.5374138959311, 142.081625797959 43.5374627233032, 142.081570638838 43.5375355317783, 142.081532740168 43.5377929673303)) ^^http://www.opengis.net/ont/geosparql#wktLiteral