premise: A brown and white dog holds a tennis ball in his mouth.
hypothesis: A dog is playing fetch with his owner.
explanation_1: holds a tennis ball in his mouth doesn't always mean  playing fetch with his owner.
explanation_2: A dog holding a tennis ball does not mean he is playing fetch, or that his owner is involved.
explanation_3: The dog has a ball but is not with its owner or playing fetch in the first sentence.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(in(e1,x4) & n_mouth(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_ball(x2) & of(x2,x3) & n_tennis(x3) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2 x3.(with(e1,x3) & n_owner(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_fetch(x2) & n_dog(x1))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4.(v_hold(e1) & of(x4,x1) & of(x2,x3) & n_tennis(x3) & n_mouth(x4) & n_male(x1) & n_dog(x1) & n_ball(x2) & in(e1,x4) & a_white(s2) & a_brown(s1) & Theme(s2,x1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3.(with(e1,x3) & v_play(e1) & of(x3,x1) & n_owner(x3) & n_male(x1) & n_fetch(x2) & n_dog(x1) & Theme(e1,x2) & Actor(e1,x1))