A boy smiles and holds a Chicken.
The chicken is being held.
The first sentence implies that the chicken is being held.
exists e1 e2 x1 x2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_hold(e2) & ne_nam_chicken(x3) & n_boy(x2) & Actor(e1,x1) & v_smile(e1) & n_boy(x1))
exists e1 x1.(n_chicken(x1) & Theme(e1,x1) & v_hold(e1))