メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.050190417127 37.9275903642762, 139.050026693927 37.9278971909533, 139.050161702515 37.9279180991785, 139.050164740509 37.9280402829458, 139.050135732827 37.9280470359562, 139.050132719847 37.9281981091291, 139.050170311902 37.9282341136445, 139.050065596994 37.9284397240346, 139.049581222943 37.9284617044098, 139.049670001464 37.9275747834813, 139.04970068377 37.9272363390802, 139.049690752348 37.9270173294648, 139.050117393253 37.9269943526259, 139.050247609958 37.9270404825802, 139.050190417127 37.9275903642762)) ^^http://www.opengis.net/ont/geosparql#wktLiteral