premise: Two people sitting on the sand.
hypothesis: There are two people sitting down.
explanation_1: "sitting on the sand" is a rephrasing of "sitting down"
explanation_2: You can sit on sand
explanation_3: Sitting on the sand is also sitting down but there are two people as subjects.
premise_logic: exists e1 x1 x2 x3.(n_sand(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 e1 s1 x2 x3.((x1 = x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & card_eq_2(x2))
premise_sim: exists e1 x1 x2 x3.(v_sit(e1) & on(e1,x3) & n_sand(x3) & n_people(x1) & card_eq_2(x1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1 e1 s1 x2 x3.(v_sit(e1) & n_people(x2) & card_eq_2(x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x3) & (x2 = x3) & (x1 = x2))