メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.371162536729 36.2246875154126, 139.370589813796 36.2246628038712, 139.369575201881 36.2246209690774, 139.369296756051 36.2237415927417, 139.369039113083 36.2228724347343, 139.369072782564 36.2228219037422, 139.369243960442 36.2227955250475, 139.370086834876 36.2227481086277, 139.370625133972 36.2227130161142, 139.37095056411 36.2227007465651, 139.371162536729 36.2246875154126)) ^^http://www.opengis.net/ont/geosparql#wktLiteral