premise: Dog running through the snow.
hypothesis: This is the first time the dog has seen snow.
explanation_1: There is no implication that this is the first time the dog has seen snow.
explanation_2: Just because a dog is running in snow does not mean it is the first time the dog has seen snow.
explanation_3: Just because the dog is running through the snow does not necessarily mean it is his first time seeing snow.
premise_logic: exists e1 x1 x2.(n_snow(x2) & ne_nam_dog(x1) & through(e1,x2) & Actor(e1,x1) & v_run(e1))
hypothesis_logic: exists p1 s1 x1 x2 x3.(n_dog(x3) & n_time(x2) & a_first(s1) & Theme(s1,x2) & n_thing(x1) & exists p2.((x1 = x2) & exists e1 x4.(Theme(e1,x4) & Actor(e1,x3) & v_see(e1) & n_snow(x4)) & that(x2,p2)))
premise_sim: exists e1 x1 x2.(v_run(e1) & through(e1,x2) & ne_nam_dog(x1) & n_snow(x2) & Actor(e1,x1))
hypothesis_sim: exists s1 x1 x2 x3.(n_time(x2) & n_thing(x1) & n_dog(x3) & exists p2.(that(x2,p2) & exists e1 x4.(v_see(e1) & n_snow(x4) & Theme(e1,x4) & Actor(e1,x3)) & (x1 = x2)) & a_first(s1) & Theme(s1,x2))