A man in a black hat stands in front of a red wall.
A man in a white hat is sitting on the floor.
It can either be a black hat or white hat. One cannot be sitting and stand simultaneously.
exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & in(x2,x4) & of(x4,x5) & n_wall(x5) & a_red(s2) & Theme(s2,x5) & n_front(x4) & n_stand(x2) & of(x2,x3) & n_hat(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(n_floor(x3) & on(e1,x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_hat(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))