メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.053580544463 37.9335137332795, 139.053243217445 37.9338092772665, 139.052926581912 37.9340913482335, 139.052584456286 37.9338688349423, 139.052648591654 37.9338053219589, 139.052576332214 37.9337565304711, 139.052641111828 37.9336958291964, 139.052553859806 37.9336330292015, 139.052422186774 37.9337510610001, 139.052271280885 37.9336612492027, 139.052538710324 37.9333112722892, 139.052547623387 37.9333029248494, 139.052864879058 37.9330029723843, 139.053580544463 37.9335137332795)) ^^http://www.opengis.net/ont/geosparql#wktLiteral