premise: An elderly woman is preparing food in the kitchen.
hypothesis: A man cleans the kitchen.
explanation_1: It is either a man or a woman.  Preparing food in the kitchen does not necessarily entail cleaning it.
explanation_2: A man is not a woman.  Preparing food is not the same as cleans the kitchen.
explanation_3: woman doesn't mean man
premise_logic: exists e1 s1 x1 x2 x3.(n_kitchen(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & n_food(x2) & n_woman(x1) & a_elderly(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_kitchen(x2) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_man(x1))