Four women are dancing around in the water.
The women are doing a belly dance.
Sentence 1 does not tell us what type of dancing the women are doing whilst sentence 2 tells us the women are doing a belly dance.
exists e1 s1 x1 x2.(n_water(x2) & in(e1,x2) & a_around(s1) & Manner(e1,s1) & Actor(e1,x1) & v_dance(e1) & n_woman(x1) & card_eq_4(x1))
exists e1 s1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_dance(x2) & a_belly(s1) & Theme(s1,x2))