メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.471740474185 40.6041295988197, 140.471113002 40.6042547751764, 140.47099145703 40.6042775437684, 140.470875062897 40.6039507071258, 140.470534793937 40.6040118382519, 140.470394828719 40.6039503267571, 140.470301381847 40.6036272899808, 140.470772717116 40.6035657960504, 140.471020912706 40.6035359675218, 140.471155688796 40.6035072603053, 140.47134204818 40.6034274227557, 140.471740474185 40.6041295988197)) ^^http://www.opengis.net/ont/geosparql#wktLiteral