premise: A large group of people walking in a busy city at night.
hypothesis: People are outside in a park.
explanation_1: people are either walking in a busy city, or they are outside in a park.
explanation_2: People are either outside in a park or walking in a busy city.
explanation_3: If they are in a busy city, they are not outside in a park at the same time.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & at(e1,x5) & n_night(x5) & in(e1,x4) & n_city(x4) & a_busy(s2) & Theme(s2,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
hypothesis_logic: exists s1 x1 x2.(in(s1,x2) & n_park(x2) & Theme(s1,x1) & a_outside(s1) & n_people(x1))