premise: A boy is riding down the road between two cows.
hypothesis: A single cow is alone.
explanation_1: There is either one or two cows
explanation_2: If there are two cows it is impossible that the cow is alone.
explanation_3: A single cow differs from two cows in number. A cow cannot be alone if a boy and another cow are also present nearby.
premise_logic: exists e1 s1 x1 x2 x3.(n_road(x2) & between(e1,x3) & n_cow(x3) & card_eq_2(x3) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_boy(x1))
hypothesis_logic: exists s1 s2 x1.(Theme(s2,x1) & a_alone(s2) & n_cow(x1) & a_single(s1) & Theme(s1,x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_ride(e1) & n_road(x2) & n_cow(x3) & n_boy(x1) & card_eq_2(x3) & between(e1,x3) & a_down(s1) & Theme(e1,x2) & Manner(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists s1 s2 x1.(n_cow(x1) & a_single(s1) & a_alone(s2) & Theme(s2,x1) & Theme(s1,x1))