A surfer in a black wetsuit rides a wave.
A man surfing a huge wave
Just because a surfer is riding a wave does not mean the wave is a huge one.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_wave(x3) & in(x1,x2) & n_wetsuit(x2) & a_black(s1) & Theme(s1,x2) & n_surfer(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_surf(e1) & n_wave(x3) & a_huge(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))