premise: A black dog frolics in the snow.
hypothesis: Dog playing in snow
explanation_1: To frolic in the snow is the same thing as playing.  So a dog frolicking in the snow is a dog playing in the snow.
premise_logic: exists s1 x1 x2 x3.(n_snow(x3) & a_topic(x1) & in(x1,x3) & n_frolic(x1) & of(x1,x2) & n_dog(x2) & a_black(s1) & Theme(s1,x1))
hypothesis_logic: exists x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_snow(x3) & n_playing(x1) & (x1 = x2) & ne_nam_dog(x2))
premise_sim: exists s1 x1 x2 x3.(of(x1,x2) & n_snow(x3) & n_frolic(x1) & n_dog(x2) & in(x1,x3) & a_topic(x1) & a_black(s1) & Theme(s1,x1))
hypothesis_sim: exists x1 x2 x3.(ne_nam_dog(x2) & n_snow(x3) & n_playing(x1) & in(x1,x3) & a_topic(x1) & (x1 = x2))