A woman is swimming underwater.
A lady is playing the lottery.
People do not usually swim while playing the lottery.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_underwater(x2) & n_woman(x1))
exists e1 x1 x2.(n_lottery(x2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_lady(x1))