premise: Two people are running in the grass by a hill.
hypothesis: An old man walks by himself through the city.
explanation_1: city cannot be having a  grass by a hill
explanation_2: An old man can't walk by himself if he is one of two people running.
explanation_3: A old man is singular while two people are plural.
premise_logic: exists e1 x1 x2 x3.(n_grass(x2) & by(e1,x3) & n_hill(x3) & in(e1,x2) & Actor(e1,x1) & v_run(e1) & n_people(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_city(x2) & through(e1,x2) & by(e1,x1) & n_male(x1) & Actor(e1,x1) & v_walk(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))
premise_sim: exists e1 x1 x2 x3.(v_run(e1) & n_people(x1) & n_hill(x3) & n_grass(x2) & in(e1,x2) & card_eq_2(x1) & by(e1,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 x1 x2.(v_walk(e1) & through(e1,x2) & n_man(x1) & n_male(x1) & n_city(x2) & by(e1,x1) & a_old(s1) & Theme(s1,x1) & Actor(e1,x1))