premise: A girl prepares herself for the swim meet.
hypothesis: The girl is wearing all black.
explanation_1: Preapering for a swim meet doesn't imply wearing all black.
explanation_2: Going to the swimming pool doesn't mean you have to wear all black
explanation_3: Just because a girl prepares herself for the swim meet, doesn't mean she is wearing all black.
premise_logic: exists e1 e2 x1 x2 x3.(n_swim(x3) & Actor(e2,x1) & v_meet(e2) & for(e1,x3) & Theme(e1,x1) & Actor(e1,x2) & v_prepare(e1) & n_female(x1) & (x1 = x2) & n_girl(x1))
hypothesis_logic: exists x1.(n_girl(x1) & all x2.(n_thing(x2) -> exists e1 s1 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & Theme(s1,x3) & a_black(s1) & (x2 = x3))))