メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.838029786164 35.4242871369171, 136.839625484389 35.4243747586057, 136.839628271494 35.4246264827644, 136.839637367502 35.4254498589161, 136.838033491584 35.4254742519077, 136.836652817707 35.4254950762117, 136.83665081757 35.425121528191, 136.836611094347 35.4242484595314, 136.837121733751 35.4242323846816, 136.837643664277 35.4242588012309, 136.838029786164 35.4242871369171)) ^^http://www.opengis.net/ont/geosparql#wktLiteral