メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.854755044427 37.4635033412928, 138.85474765487 37.4640155895349, 138.854743062055 37.4645963966423, 138.854744789918 37.4649600745086, 138.854084628033 37.4648975780006, 138.853392631199 37.4648448875258, 138.85334777472 37.4648417836809, 138.852798805741 37.4648035861029, 138.852723263851 37.4643893027417, 138.852695590904 37.4642426744597, 138.852660297104 37.4640434100591, 138.852603375011 37.4637341058896, 138.852599887364 37.463715108368, 138.852476857218 37.4629968433981, 138.85253324482 37.4629970959916, 138.853106852084 37.4629873487423, 138.853755909481 37.4628579745211, 138.853867632818 37.4628321547663, 138.854208101515 37.4627632628251, 138.854452812023 37.4627115563396, 138.854681922136 37.4627363502945, 138.854684823856 37.4627894224066, 138.854772138198 37.463234927903, 138.854755044427 37.4635033412928)) ^^http://www.opengis.net/ont/geosparql#wktLiteral