Two men, one in white and another in blue.
There are two men
On in white and another in blue suggests two men.
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & rel(x1,x2) & subset_of(x5,x2) & in(x5,x6) & n_blue(x6) & n_thing(x5) & subset_of(x3,x2) & in(x3,x4) & n_white(x4) & n_thing(x3) & card_eq_1(x3) & n_man(x1) & card_eq_2(x1))
exists p1 x1 x2.((x1 = x2) & n_man(x2) & card_eq_2(x2))