Two men are helping another man cross a stream.
People pushing a man into water.
Two people are not helping a man cross a stream if they are pushing him into water
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_cross(e2) & n_stream(x4) & Theme(e1,x3) & Actor(e1,x2) & v_help(e1) & n_man(x3) & -(x3 = x1) & n_man(x1) & n_man(x1) & (x1 = x2) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & into(e1,x4) & n_water(x4) & Theme(e1,x3) & Actor(e1,x2) & v_push(e1) & n_man(x3) & (x1 = x2) & n_people(x1))