premise: A boy rides his skateboard at the park.
hypothesis: A sad boy rides his skateboard at the park.
explanation_1: A boy can be feeling something other than sad.
explanation_2: Just because a boy rides his skateboard at the park, doesn't mean he is sad.
explanation_3: You can not infer the boy is sad.
premise_logic: exists e1 x1 x2 x3.(n_park(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_skateboard(x2) & of(x2,x1) & n_male(x1) & n_boy(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_park(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_skateboard(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & a_sad(s1) & Theme(s1,x1))