A young boy is walking in a grassy field.
a boy looks for his father
Walking does not imply he looks for his father.
exists e1 s1 s2 x1 x2.(in(e1,x2) & n_field(x2) & a_grassy(s2) & Theme(s2,x2) & Actor(e1,x1) & v_walk(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(for(e1,x2) & n_father(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_look(e1) & n_boy(x1))