Girl wearing black headscarf walks in desert.
The girl is lost.
Walk in the desert does not imply to be lost.
exists e2 e1 s1 x1 x2 x3.(in(e2,x3) & n_desert(x3) & Actor(e2,x1) & v_walk(e2) & n_headscarf(x1) & a_black(s1) & Theme(s1,x1) & Actor(e1,x1) & v_wear(e1) & (x1 = x2) & ne_nam_girl(x2))
exists e1 x1.(n_girl(x1) & Theme(e1,x1) & v_lose(e1))