premise: A swimming dog with a small branch in its mouth.
hypothesis: A male dog is swimming in a lake with a stick in its mouth.
explanation_1: It's hard to tell a dog is male in the water.
explanation_2: We have no idea if the dog is a male, it could be a female.
explanation_3: Just because a dog is swimming it does not mean the dog is in a lake.   A dog does not have to be male it could be female.
premise_logic: exists s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x3) & in(x3,x4) & n_mouth(x4) & of(x4,x1) & n_thing(x1) & n_branch(x3) & a_small(s1) & Theme(s1,x3) & n_dog(x1) & of(x1,x2) & n_swimming(x2))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_lake(x4) & with(e1,x2) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_stick(x2) & Actor(e1,x1) & v_swim(e1) & n_dog(x1) & a_male(s1) & Theme(s1,x1))