premise: A couple sits in the grass.
hypothesis: A couple is at a restaurant.
explanation_1: A couple is not at a restaurant if they're sitting in the grass.
explanation_2: There is usually no grass inside a restaurant.
explanation_3: A couple sits in the grass can not be at a restaurant.
premise_logic: exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_couple(x1))
hypothesis_logic: exists p1 x1.(exists x2.(at(x1,x2) & n_restaurant(x2)) & n_couple(x1))
premise_sim: exists e1 x1 x2.(v_sit(e1) & n_grass(x2) & n_couple(x1) & in(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_couple(x1) & exists x2.(n_restaurant(x2) & at(x1,x2)))