メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.006432717962 34.9940003700688, 137.00717017689 34.9936103404637, 137.009052566529 34.9940858598382, 137.008983284933 34.9944339558227, 137.008954386234 34.9945947013139, 137.008933717795 34.9947257366184, 137.008912190335 34.994874871068, 137.006845545651 34.9946772864433, 137.006104669014 34.9945948924886, 137.005456105027 34.9945867751069, 137.005450754663 34.994492960335, 137.005467565475 34.9942850154337, 137.005551801175 34.993962859163, 137.00576586901 34.9936782010555, 137.006432717962 34.9940003700688)) ^^http://www.opengis.net/ont/geosparql#wktLiteral