A man is falling into waves.
The man is laying down.
he can't be both laying down and falling into waves.
exists e1 x1 x2.(into(e1,x2) & n_wave(x2) & Actor(e1,x1) & v_fall(e1) & n_man(x1))
exists e1 s1 x1.(n_man(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lay(e1))