Two young boys are playing in the water.
A couple kids play in the water.
The two boys are the couple of kids playing in the water.
exists e1 s1 x1 x2.(n_water(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_water(x3) & in(e1,x3) & Actor(e1,x1) & v_play(e1) & n_kid(x1) & of(x1,x2) & n_couple(x2))