A man wearing a white shirt and a yellow hard hat is using construction equipment.
The man is wearing a black shirt.
The man's shirt can either be white or black, but not both at the same time.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x6) & Actor(e2,x1) & v_use(e2) & n_equipment(x6) & of(x6,x7) & n_construction(x7) & subset_of(x5,x1) & n_hat(x5) & a_hard(s3) & Theme(s3,x5) & a_yellow(s2) & Theme(s2,x5) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_shirt(x4) & a_white(s1) & Theme(s1,x4) & (x2 = x3) & n_man(x2))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_black(s1) & Theme(s1,x2))