A little girl is sitting on a toy tractor.
A girl sitting on her dads tractor toy
Just because a little girl is sitting on a toy tractor doesn't mean it's her dads.
exists e1 s1 x1 x2 x3.(on(e1,x2) & n_tractor(x2) & of(x2,x3) & n_toy(x3) & Actor(e1,x1) & v_sit(e1) & n_girl(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x3) & n_toy(x3) & of(x3,x5) & n_tractor(x5) & of(x3,x4) & n_dad(x4) & of(x3,x1) & n_female(x1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_girl(x1))