premise: Two black dogs are frolicking around the grass together.
hypothesis: Two dogs swim in the lake.
explanation_1: The dogs are either outside frolicking on the grass or in water while they swim in a lake.
explanation_2: Dogs cannot be in a lake and on the grass at the same time.
explanation_3: Dogs cannot frolic on the grass and swim at the same time.
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 e1 x1 x2.(n_lake(x2) & in(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_dog(x1) & card_eq_2(x1))
premise_sim: exists e1 s1 s2 x1 x2.(v_frolic(e1) & n_grass(x2) & n_dog(x1) & card_eq_2(x1) & around(e1,x2) & a_together(s2) & a_black(s1) & Theme(s1,x1) & Manner(e1,s2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_swim(e1) & n_lake(x2) & n_dog(x1) & in(e1,x2) & card_eq_2(x1) & Actor(e1,x1))