premise: A baby smiles while swinging in a blue infant swing.
hypothesis: the baby is asleep
explanation_1: A baby asleep is not swinging and smiling.
explanation_2: The baby is awake and reacting to something to result in a smile.  In order to see this, the baby cannot be asleep.
explanation_3: The baby is likely unable to smile if asleep.
premise_logic: exists e2 e1 s1 x1 x2 x3.(while(e1,e2) & in(e2,x2) & n_swing(x2) & of(x2,x3) & n_infant(x3) & a_blue(s1) & Theme(s1,x2) & Actor(e2,x1) & v_swing(e2) & Actor(e1,x1) & v_smile(e1) & n_baby(x1))
hypothesis_logic: exists s1 x1.(n_baby(x1) & Theme(s1,x1) & a_asleep(s1))