メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.927256890053 35.4082209974971, 136.927220188183 35.4089593425875, 136.927319955353 35.4090148911482, 136.927973783782 35.4093549758011, 136.927955730798 35.4097262619797, 136.92768530483 35.4100816262149, 136.925817332776 35.4100702301723, 136.925108966807 35.4093327189403, 136.924550182927 35.4093311748143, 136.923744925772 35.4093268780958, 136.923763072579 35.4082009098068, 136.924857502048 35.4082128285053, 136.925525894072 35.4082110684097, 136.927256890053 35.4082209974971)) ^^http://www.opengis.net/ont/geosparql#wktLiteral