People standing near water one is wearing yellow and one is in purple.
People are wearing black and white.
they can't be wearing yellow and purple, and wearing black and white.
exists e2 e1 p1 p2 x1 x2 x3 x4.(exists x5.(in(x4,x5) & n_purple(x5)) & n_thing(x4) & card_eq_1(x4) & exists s1.(Theme(s1,x1) & a_yellow(s1)) & Topic(e2,p1) & Actor(e2,x1) & v_wear(e2) & near(e1,x3) & n_water(x3) & card_eq_1(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1))
exists e1 p1 x1.(exists s1 s2.(Theme(s2,x1) & a_white(s2) & Theme(s1,x1) & a_black(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_wear(e1) & n_people(x1))