premise: A father and son kicking a ball at a park.
hypothesis: The father and son kicked the ball.
explanation_1: A father and a son kicking the ball definitely kicked the ball.
explanation_2: kicking a ball  is inferred as kicked the ball.
explanation_3: If both father and son were kicking the ball, then you can assume that both father and son at one point kicked the ball.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & at(e1,x5) & n_park(x5) & Theme(e1,x4) & Actor(e1,x3) & v_kick(e1) & n_ball(x4) & (x2 = x3) & n_son(x2) & subset_of(x1,s1) & n_father(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_ball(x4) & n_son(x3) & n_father(x2) & subset_of(x3,x1) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x1) & v_kick(e1))