premise: A man and a woman are among many walking down the sidewalk.
hypothesis: Two people sleep in the grass.
explanation_1: You can not walk and sleep at the same time.  The sidewalk and grass are two different places.
premise_logic: exists p1 x1 x2 x3 x6.(n_sidewalk(x6) & exists e1 s1 x4 x5.(among(x1,x4) & a_down(s1) & Manner(e1,s1) & Theme(e1,x6) & Actor(e1,x5) & v_walk(e1) & (x4 = x5) & n_many(x4)) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
hypothesis_logic: exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_sleep(e1) & n_people(x1) & card_eq_2(x1))
premise_sim: exists x1 x2 x3 x6.(subset_of(x3,x1) & subset_of(x2,x1) & n_woman(x3) & n_sidewalk(x6) & n_man(x2) & exists e1 s1 x4 x5.(v_walk(e1) & n_many(x4) & among(x1,x4) & a_down(s1) & Theme(e1,x6) & Manner(e1,s1) & Actor(e1,x5) & (x4 = x5)))
hypothesis_sim: exists e1 x1 x2.(v_sleep(e1) & n_people(x1) & n_grass(x2) & in(e1,x2) & card_eq_2(x1) & Actor(e1,x1))