A man in a yellow shirt sits outside a waiting room.
The man is wearing a white shirt.
The shit is either yellow or white, it can't be both.
exists e1 s1 x1 x2 x3 x4.(outside(e1,x3) & n_room(x3) & of(x3,x4) & n_waiting(x4) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_shirt(x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_white(s1) & Theme(s1,x2))