premise: A dog jumping for a Frisbee in the snow.
hypothesis: A pet is enjoying a game of fetch with his owner.
explanation_1: The pet can also play a game in the snow.
explanation_2: A dog need not be a pet.  A dog jumping for a Frisbee need niether be participating in willful play, nor enjoying it.  Anyone can toss a Frisbee in the direction of an animal and need not be its owner.
explanation_3: Not all dogs have an owner.
premise_logic: exists e1 x1 x2 x3 x4.(n_snow(x4) & a_topic(x1) & in(e1,x4) & for(e1,x3) & n_frisbee(x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_dog(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & of(x2,x3) & with(x3,x4) & n_owner(x4) & of(x4,x1) & n_male(x1) & n_fetch(x3) & n_game(x2) & n_pet(x1))
premise_sim: exists e1 x1 x2 x3 x4.(v_jump(e1) & n_snow(x4) & n_frisbee(x3) & n_dog(x1) & in(e1,x4) & for(e1,x3) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2 x3 x4.(with(x3,x4) & v_enjoy(e1) & of(x4,x1) & of(x2,x3) & n_pet(x1) & n_owner(x4) & n_male(x1) & n_game(x2) & n_fetch(x3) & Theme(e1,x2) & Actor(e1,x1))