premise: A dog opens its mouth to catch a blue and yellow toy.
hypothesis: The pet is chewing on a bone
explanation_1: Bones are not blue and yellow.
explanation_2: A bone isn't specifically a toy nor can be yellow and blue.
explanation_3: A pet is not necessarily a dog.  The pet is either ready to catch a toy or is chewing on a bone and could not be doing both at the same time.
premise_logic: exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 s1 s2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_catch(e2) & n_toy(x4) & a_yellow(s2) & Theme(s2,x4) & a_blue(s1) & Theme(s1,x4)) & Theme(e1,x3) & Actor(e1,x2) & v_open(e1) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_dog(x2) & n_dog(x1))
hypothesis_logic: exists e1 x1 x2.(n_pet(x1) & on(e1,x2) & n_bone(x2) & Actor(e1,x1) & v_chew(e1))
premise_sim: exists e1 p1 x1 x2 x3.(v_open(e1) & of(x3,x1) & n_thing(x1) & n_mouth(x3) & n_dog(x2) & n_dog(x1) & exists e2 s1 s2 x4.(v_catch(e2) & n_toy(x4) & a_yellow(s2) & a_blue(s1) & Theme(s2,x4) & Theme(s1,x4) & Theme(e2,x4) & Actor(e2,x1)) & Topic(e1,p1) & Theme(e1,x3) & Actor(e1,x2))
hypothesis_sim: exists e1 x1 x2.(v_chew(e1) & on(e1,x2) & n_pet(x1) & n_bone(x2) & Actor(e1,x1))