メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.880149491094 38.7471044429223, 139.880404870421 38.7476754726786, 139.879489922385 38.7479212430495, 139.878801707905 38.7481139598348, 139.877951267709 38.7483403977708, 139.877684836795 38.7476962176956, 139.877167679513 38.7464444396748, 139.876575795188 38.7451029469916, 139.876022960117 38.7436856182329, 139.875888256439 38.7436580529579, 139.876045797494 38.7435502531131, 139.876002054444 38.7427205377792, 139.876327818375 38.7426536673066, 139.876602901744 38.7425998953053, 139.876818595146 38.7425585860871, 139.87705153459 38.7424977119472, 139.877655428953 38.7423031901217, 139.878039692073 38.7430188552252, 139.878587069529 38.744045381953, 139.879170156618 38.7451652387101, 139.879761001198 38.7462912058413, 139.880149491094 38.7471044429223)) ^^http://www.opengis.net/ont/geosparql#wktLiteral