*begin langs_cave_fake *export 1 *export 80 *entrance 80 *units dx dy 7.353 metres ; derived from scale bar *units dz 1.0 metres *data cartesian from to dy dx dz 80 81 5 10 1 81 82 2 0 2 81 83 -1 1 -2 83 84 2 3 1 83 85 -2 -3 2 *end langs_cave_fake