premise: A man and a woman smiling at a crying baby.
hypothesis: Two people smile while looking at a baby.
explanation_1: If there  is a man and a woman then there are two people.
explanation_2: A man and a woman is inferred as  Two people and crying baby is inferred as baby.
explanation_3: a man and a woman denotes two people
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & at(e1,x4) & n_baby(x4) & Actor(e2,x4) & v_cry(e2) & Actor(e1,x3) & v_smile(e1) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
hypothesis_logic: exists e1 e2 x1 x2.(while(e1,e2) & at(e2,x2) & n_baby(x2) & Actor(e2,x1) & v_look(e2) & Actor(e1,x1) & v_smile(e1) & n_people(x1) & card_eq_2(x1))