premise: Two men wearing brown hats are doing work on a yellow house.
hypothesis: Some men are fixing an old lady's house.
explanation_1: house didn't have to be an old lady's
explanation_2: Just because they are doing work does not necessarily mean they are fixing the house.
explanation_3: Doing work doesn't have to mean fixing, for example they could be demolishing the house. The first sentence says nothing about who the house belongs to, or mention anything about old lady's.
premise_logic: exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(on(e2,x5) & n_house(x5) & a_yellow(s2) & Theme(s2,x5) & Theme(e2,x4) & Actor(e2,x1) & v_do(e2) & n_work(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & a_brown(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_fix(e1) & n_house(x3) & of(x3,x2) & n_lady(x2) & a_old(s1) & Theme(s1,x2) & n_man(x1))