premise: Two black dogs are frolicking around the grass together.
hypothesis: Two dogs play in the grass.
explanation_1: Two black dogs are two dogs.
explanation_2: Two black dogs are dogs and they frolicking around the grass together means playing in the grass.
explanation_3: Play is a rephrasing of frolicking.
premise_logic: exists e1 s1 s2 x1 x2.(n_grass(x2) & a_together(s2) & Manner(e1,s2) & around(e1,x2) & Actor(e1,x1) & v_frolic(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & card_eq_2(x1))
hypothesis_logic: exists x1 x2 x3.(n_grass(x3) & a_topic(x1) & in(x1,x3) & n_play(x1) & of(x1,x2) & n_dog(x2) & card_eq_2(x1))