A man in a blue shirt is holding a construction hat.
A man's hands are empty.
A man's hands cannot be empty if he is holding a construction hat.
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_hat(x3) & of(x3,x4) & n_construction(x4) & in(x1,x2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists s1 x1 x2.(Theme(s1,x2) & a_empty(s1) & n_hand(x2) & of(x2,x1) & n_man(x1))