premise: A brown dog opens his mouth to catch a piece of food.
hypothesis: a dog is sleeping
explanation_1: The dog cannot be sleeping if he is also opening his mouth to catch food.
explanation_2: A sleeping dog cannot open his mouth to catch food.
explanation_3: One cannot catch an item while sleeping.
premise_logic: exists e1 p1 s1 s2 x1 x2 x3.(Topic(e1,p1) & exists e2 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_catch(e2) & of(x4,x5) & n_food(x5) & n_piece(x4)) & Theme(e1,x3) & Actor(e1,x2) & v_open(e1) & n_mouth(x3) & of(x3,x1) & n_male(x1) & n_dog(x2) & a_brown(s2) & Theme(s2,x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_dog(x1))