A young blond lady is having a cigarette while she walks.
A young lady is not smoking
A lady who is not smoking cannot also be having a cigarette.
exists e1 p1 s1 s2 x1 x2.(exists e2.(Actor(e2,x1) & v_walk(e2)) & n_female(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_cigarette(x2) & n_lady(x1) & a_blond(s2) & Theme(s2,x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1.(-exists p1 x2.((x1 = x2) & n_smoking(x2)) & n_lady(x1) & a_young(s1) & Theme(s1,x1))