premise: A couple sits in the grass.
hypothesis: A couple is having a picnic.
explanation_1: A couple sitting on the grass is not necessarily having a picnic.
explanation_2: Just because a couple is sitting in the grass doesn't mean they are having a picnic.
explanation_3: A couple can sit in the grass and not be having a picnic.
premise_logic: exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_couple(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_picnic(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 e1 x1 x2.(v_have(e1) & n_picnic(x2) & n_couple(x1) & Theme(e1,x2) & Actor(e1,x1))