A woman in a blue coat is walking by a poster.
The woman is sitting on the grass in a park.
One cannot be both sitting and walking at the same time.
exists e1 s1 x1 x2 x3.(by(e1,x3) & n_poster(x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_coat(x2) & a_blue(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 x1 x2 x3.(n_grass(x2) & n_woman(x1) & in(e1,x3) & n_park(x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1))