premise: A cheerful boy rides a makeshift sled down a snowy hill.
hypothesis: A boy is enjoying himself while thinking about sliding down a snow hill with his friends
explanation_1: You can not infer he is thinking about his friends.
explanation_2: Just because a boy is cheerful does not mean that he is enjoying himself nor does it infer that he thinking bout sliding down a snow hill with his friends.
explanation_3: A boy can sled without his friends.
premise_logic: exists e1 e2 s1 s2 s3 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_ride(e2) & a_down(s3) & Manner(e1,s3) & Theme(e1,x4) & Actor(e1,x3) & v_sled(e1) & n_hill(x4) & a_snowy(s2) & Theme(s2,x4) & (x2 = x3) & n_makeshift(x2) & n_boy(x1) & a_cheerful(s1) & Theme(s1,x1))
hypothesis_logic: exists e3 e2 e1 s1 x1 x2 x3 x4 x5.(while(e1,e2) & about(e2,e3) & with(e3,x5) & n_friend(x5) & of(x5,x2) & n_male(x2) & n_male(x2) & a_down(s1) & Manner(e3,s1) & Theme(e3,x2) & Actor(e3,x3) & v_slide(e3) & n_hill(x2) & of(x2,x4) & n_snow(x4) & Actor(e2,x1) & v_think(e2) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_boy(x1))