メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.121210806021 35.3447304502686, 137.121292167783 35.3452135178165, 137.121360451073 35.3456800330061, 137.121231299799 35.3456929409024, 137.121000680115 35.3456960907871, 137.120349811706 35.345449632504, 137.119184717586 35.3456953679456, 137.119164990297 35.3456208515757, 137.11912156323 35.3455074515312, 137.11917448104 35.3451490141463, 137.119289480433 35.3444458120686, 137.119860123209 35.344215476698, 137.120903912634 35.3437917318348, 137.121069805183 35.3437253173915, 137.121158228061 35.3443626100825, 137.121209413619 35.3447222098922, 137.121210806021 35.3447304502686)) ^^http://www.opengis.net/ont/geosparql#wktLiteral