premise: Two ladies are sitting in the restaurant talking and laughing.
hypothesis: Sisters have their weekly lunch together.
explanation_1: Two ladies don't necessarily imply two sisters. Sitting in the restaurant talking and laughing doesn't mean they are having their lunch together.
explanation_2: Just because two laldies are talking and laughing in a restaurant does not mean it is two sisters having lunch.
explanation_3: Not all ladies are sisters.
premise_logic: exists e1 e3 e2 x1 x2 x3 x4.(n_restaurant(x2) & Actor(e3,x4) & v_laugh(e3) & n_lady(x4) & card_eq_2(x4) & in(e1,x2) & Actor(e2,x3) & v_talk(e2) & (x2 = x3) & Actor(e1,x1) & v_sit(e1) & n_lady(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 s2 x1 x2.(a_together(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_lunch(x2) & a_weekly(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & n_sister(x1))