Some women are playing beach volleyball
The women were skiing.
Skiing involves snow and T\there is not typically snow at the beach.  one cannot be playing beach volleyball and skiing at the same time.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_volleyball(x2) & of(x2,x3) & n_beach(x3) & n_woman(x1))
exists p1 x1.(n_woman(x1) & exists x2.((x1 = x2) & n_skiing(x2)))