premise: A happy boy is jumping in front OD city fountain.
hypothesis: The boy is playing with his friends.
explanation_1: Playing is different from jumping and Jumping does not require friends.
explanation_2: A happy boy jumping in a front of a fountain is not necessarily playing with friends, he could be playing alone or with a variety of other people.
explanation_3: A happy boy jumping in fountain does not always play with his friends.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(in(e1,x2) & n_fountain(x2) & of(x2,x4) & n_city(x4) & (x2 = x3) & ne_geo_od(x3) & a_front(s2) & Theme(s2,x2) & Actor(e1,x1) & v_jump(e1) & n_boy(x1) & a_happy(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_friend(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & with(e1,x2) & Actor(e1,x1) & v_play(e1))