Two black males in front of a rickshaw.
The males are not white.
Black males implies the males are not white.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & of(x2,x3) & n_rickshaw(x3) & n_front(x2) & n_male(x1) & a_black(s1) & Theme(s1,x1) & card_eq_2(x1))
exists x1.(n_male(x1) & -exists s1.(Theme(s1,x1) & a_white(s1)))