premise: Dog running with pet toy being chased by another dog.
hypothesis: a black dog with a toy is being based by a brown dog
explanation_1: Dogs can be colors other than brown and black.
explanation_2: The dog running does not have to be black.  Another dog can be any color not just brown.  Based is not the same as chased.
explanation_3: The dog running must not be black and the dog chasing it must not be brown.
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5.(n_dog(x4) & ne_nam_dog(x1) & with(e1,x2) & Actor(e2,x5) & n_dog(x5) & -(x5 = x4) & Theme(e2,x3) & v_chase(e2) & (x2 = x3) & n_toy(x2) & a_pet(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1))
hypothesis_logic: exists e1 s1 s2 x1 x2 x3.(Actor(e1,x3) & n_dog(x3) & a_brown(s2) & Theme(s2,x3) & Theme(e1,x1) & v_base(e1) & with(x1,x2) & n_toy(x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
premise_sim: exists e2 e1 s1 x1 x2 x3 x4 x5.(with(e1,x2) & v_run(e1) & v_chase(e2) & ne_nam_dog(x1) & n_toy(x2) & n_dog(x5) & n_dog(x4) & a_pet(s1) & Theme(s1,x2) & Theme(e2,x3) & Actor(e2,x5) & Actor(e1,x1) & -(x5 = x4) & (x2 = x3))
hypothesis_sim: exists e1 s1 s2 x1 x2 x3.(with(x1,x2) & v_base(e1) & n_toy(x2) & n_dog(x3) & n_dog(x1) & a_brown(s2) & a_black(s1) & Theme(s2,x3) & Theme(s1,x1) & Theme(e1,x1) & Actor(e1,x3))