premise: A boy rides his skateboard at the park.
hypothesis: A girl rides his skateboard at the park.
explanation_1: It is either a boy or a girl.
explanation_2: His skateboard refers to a boy.
explanation_3: A boy riding his skateboard cannot be called a girl.
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 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_girl(x1))