Seven people are white water rafting.
Seven people are in the water rafting.
White water rafting is water rafting.
exists p1 x1.(exists s1 x2 x3.((x1 = x2) & n_rafting(x2) & of(x2,x3) & n_water(x3) & a_white(s1) & Theme(s1,x2)) & n_people(x1) & card_eq_7(x1))
exists p1 x1 x2 x3.(n_rafting(x2) & of(x2,x3) & n_water(x3) & in(x1,x2) & n_people(x1) & card_eq_7(x1))