premise: A group of people are looking at photographs on a wall and speaking to each other.
hypothesis: A group of friends are visiting an art exhibit.
explanation_1: Not all photographs on walls are part of an art exhibit.
explanation_2: You can not infer it's for art.
explanation_3: A group of people isn't always a group of friends, and photographs on a wall don't imply an art exhibit.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6.(all x7.(n_other(x7) -> to(e1,x7)) & on(e1,x4) & n_speaking(x6) & n_wall(x5) & subset_of(x6,x4) & subset_of(x5,x4) & at(e1,x3) & n_photograph(x3) & Actor(e1,x1) & v_look(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_visit(e1) & n_exhibit(x3) & of(x3,x4) & n_art(x4) & of(x1,x2) & n_friend(x2) & n_group(x1))
premise_sim: exists e1 x1 x2 x3 x4 x5 x6.(v_look(e1) & subset_of(x6,x4) & subset_of(x5,x4) & on(e1,x4) & of(x1,x2) & n_wall(x5) & n_speaking(x6) & n_photograph(x3) & n_people(x2) & n_group(x1) & at(e1,x3) & all x7.(to(e1,x7) | -n_other(x7)) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3 x4.(v_visit(e1) & of(x3,x4) & of(x1,x2) & n_group(x1) & n_friend(x2) & n_exhibit(x3) & n_art(x4) & Theme(e1,x3) & Actor(e1,x1))