A man and children work on the engine of an old truck.
A man and children are walking in a park.
Working on the engine of an old truck is different from walking in a park.
exists e1 s1 x1 x2 x3 x4 x5.(n_engine(x4) & on(e1,x4) & of(x4,x5) & n_truck(x5) & a_old(s1) & Theme(s1,x5) & Actor(e1,x1) & v_work(e1) & subset_of(x3,x1) & n_child(x3) & subset_of(x2,x1) & n_man(x2))
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_park(x4) & Actor(e1,x1) & v_walk(e1) & n_child(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))