premise: A man walks with a cow down a dirt sidewalk.
hypothesis: A man leads a cow to be milked.
explanation_1: Just because a man walks with a cow doesn't mean he leads it, and doesn't mean that the cow is going to be milked (or even can be milked).
explanation_2: Just because a cow is walked down a dirt sidewalk does not mean it is going to be milked.
explanation_3: Walking with a cow isn't necessarily taking it to be milked.
premise_logic: exists e1 x1 x2 x3 x4.(with(e1,x2) & down(x2,x3) & n_sidewalk(x3) & of(x3,x4) & n_dirt(x4) & n_cow(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
hypothesis_logic: exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2.(Theme(e2,x1) & v_milk(e2)) & Theme(e1,x3) & Actor(e1,x2) & v_lead(e1) & n_cow(x3) & n_man(x2) & n_man(x1))
premise_sim: exists e1 x1 x2 x3 x4.(with(e1,x2) & v_walk(e1) & of(x3,x4) & n_sidewalk(x3) & n_man(x1) & n_dirt(x4) & n_cow(x2) & down(x2,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 p1 x1 x2 x3.(v_lead(e1) & n_man(x2) & n_man(x1) & n_cow(x3) & exists e2.(v_milk(e2) & Theme(e2,x1)) & Topic(e1,p1) & Theme(e1,x3) & Actor(e1,x2))