premise: A group of people at a festival.
hypothesis: The people all know each other.
explanation_1: Just because  A group of people at a festival does not mean they all know each other.
premise_logic: exists x1 x2 x3.(a_topic(x1) & of(x1,x2) & at(x2,x3) & n_festival(x3) & n_people(x2) & n_group(x1))
hypothesis_logic: exists x1.(n_people(x1) & all x2.(n_other(x2) -> exists e1 s1.(a_all(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_know(e1))))
premise_sim: exists x1 x2 x3.(of(x1,x2) & n_people(x2) & n_group(x1) & n_festival(x3) & at(x2,x3) & a_topic(x1))
hypothesis_sim: exists x1.(n_people(x1) & all x2.(exists e1 s1.(v_know(e1) & a_all(s1) & Theme(e1,x2) & Manner(e1,s1) & Actor(e1,x1)) | -n_other(x2)))