Two people are playing a water sport.
The people are playing table tennis.
water sporta and table tennis are two different activities
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sport(x2) & of(x2,x3) & n_water(x3) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tennis(x2) & of(x2,x3) & n_table(x3))