A man in a white shirt is on a rooftop lifting a board.
The man has a red shirt.
The man's shirt must be either white or red.
exists p1 s1 x1 x2.(exists e1 x3 x4 x5.(on(x1,x3) & Theme(e1,x5) & Actor(e1,x4) & v_lift(e1) & n_board(x5) & (x3 = x4) & n_rooftop(x3)) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_shirt(x2) & a_red(s1) & Theme(s1,x2))