Two people playing with a volleyball in a pool.
A man is feeding the birds.
Two people playing is a different scenario from a man feeding the birds.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_pool(x4) & with(e1,x3) & n_volleyball(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_bird(x2) & Theme(e1,x2) & Actor(e1,x1) & v_feed(e1) & n_man(x1))