メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.99843668512 43.5549748123287, 144.998129615093 43.5547625950312, 144.998171145347 43.5547233424187, 144.998069864973 43.5546564452217, 144.998243238611 43.5545185975611, 144.99829185003 43.5544819521645, 144.998220172671 43.5544366341668, 144.998709076002 43.5540340730155, 144.99884141309 43.5539251639342, 144.999304668878 43.554242226252, 144.999185032794 43.5543371183472, 144.99843668512 43.5549748123287)) ^^http://www.opengis.net/ont/geosparql#wktLiteral