メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.740871839875 43.2034769953039, 141.74132601622 43.2037053268147, 141.740605070028 43.2044860012378, 141.740012768415 43.20510211376, 141.739634435341 43.204903089322, 141.73955278307 43.2048605291411, 141.739550437787 43.2048593241396, 141.738947192339 43.2045450843912, 141.738908090358 43.2045246556806, 141.739496942289 43.2038908112677, 141.740211231088 43.2031427463036, 141.740404899568 43.2032407294281, 141.740871839875 43.2034769953039)) ^^http://www.opengis.net/ont/geosparql#wktLiteral