A boy wearing a fireman's hat holds a small flower in one hand and a saw in the other.
Nobody has a hat
The boy is either wearing a fireman's hat or he isn't. If he is, than nobody has a hat is untrue.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_other(x9) & Theme(e2,x5) & Actor(e2,x1) & v_hold(e2) & subset_of(x8,x5) & in(x8,x9) & n_saw(x8) & subset_of(x6,x5) & in(x6,x7) & n_hand(x7) & card_eq_1(x7) & n_flower(x6) & a_small(s1) & Theme(s1,x6) & Theme(e1,x4) & Actor(e1,x2) & v_wear(e1) & n_hat(x4) & of(x4,x3) & n_fireman(x3) & (x1 = x2) & n_boy(x1))
-exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_hat(x2) & n_person(x1))