Two feet and a surfboard emerging from a wave.
A woman was riding a wave.
Just because a surfboard emerges from a wave does not mean that a woman was riding the board.
exists e1 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & from(e1,x4) & n_wave(x4) & Actor(e1,x3) & v_emerge(e1) & (x2 = x3) & n_surfboard(x2) & subset_of(x1,s1) & n_foot(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_wave(x2) & n_woman(x1))