premise: The little boy stands in the middle of birds who have gathered on the sidewalk.
hypothesis: The boy is in the dog park with a bunch of dogs.
explanation_1: It cannot be dogs and birds simultaneously
explanation_2: The boy is stands near birds not dogs.  The boy is on the sidewalk not a dog park.
explanation_3: A boy can not be with a bunch of dogs if he is in the middle of birds.
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5.(n_sidewalk(x5) & n_middle(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1) & in(e1,x2) & of(x2,x3) & on(e2,x5) & Actor(e2,x4) & v_gather(e2) & (x3 = x4) & n_bird(x3) & Actor(e1,x1) & v_stand(e1))
hypothesis_logic: exists p1 x1.(n_boy(x1) & exists x2 x3 x4.(in(x1,x2) & with(x2,x4) & of(x4,x3) & n_dog(x3) & n_dog(x3) & n_bunch(x4) & n_park(x2) & of(x2,x3)))
premise_sim: exists e2 e1 s1 x1 x2 x3 x4 x5.(v_stand(e1) & v_gather(e2) & on(e2,x5) & of(x2,x3) & n_sidewalk(x5) & n_middle(x2) & n_boy(x1) & n_bird(x3) & in(e1,x2) & a_little(s1) & Theme(s1,x1) & Actor(e2,x4) & Actor(e1,x1) & (x3 = x4))
hypothesis_sim: exists x1.(n_boy(x1) & exists x2 x3 x4.(with(x2,x4) & of(x4,x3) & of(x2,x3) & n_park(x2) & n_dog(x3) & n_bunch(x4) & in(x1,x2)))