premise: A group of people are looking at photographs on a wall and speaking to each other.
hypothesis: Many people are having a conversation.
explanation_1: The people are having a conversation because there is a group of people having a conversation about photographs on a wall.
explanation_2: When people speak to each other it is a conversation
explanation_3: A conversation requires speaking to each other.
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.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_conversation(x2) & n_people(x1) & n_quantity(x1))