premise: The brown German shepherd dog is playing with a stick.
hypothesis: The dog is playing.
explanation_1: Sentence 2 is a subset of sentence 1.(Dog is playing)
explanation_2: Brown German shepherd dog is a type of dog, and playing with a stick is a type of playing.
explanation_3: If the dog is playing with a stick, it could be restated simply as "the dog is playing."
premise_logic: exists e1 s1 s2 x1 x2 x3.(n_dog(x1) & of(x1,x2) & n_shepherd(x2) & a_german(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1) & with(e1,x3) & n_stick(x3) & Actor(e1,x1) & v_play(e1))
hypothesis_logic: exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_play(e1))