premise: A tan bird stands on a ledge about to eat something.
hypothesis: A bird is about to eat some food.
explanation_1: When you eat something that something is food.
explanation_2: To eat something is to eat food
explanation_3: The use of food clarifies what the something is that the bird is about to eat.
premise_logic: exists e1 p1 s1 s2 x1 x2 x3.(on(e1,x2) & Topic(s2,p1) & Actor(s2,x3) & a_about(s2) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x3) & v_eat(e2) & n_thing(x4)) & (x2 = x3) & n_ledge(x2) & Actor(e1,x1) & v_stand(e1) & n_bird(x1) & a_tan(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_food(x2)) & n_bird(x1))