premise: A group of people looking at menus in a white restaurant.
hypothesis: The people are celebrating a birthday.
explanation_1: We do not know that they are celebrating, or if it is anyone's birthday
explanation_2: Just because a group of people looking at menus in a white restaurant does not mean they are celebrating a birthday.
explanation_3: People can be at a restaurant without celebrating a birthday.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & at(e1,x4) & in(x4,x5) & n_restaurant(x5) & a_white(s1) & Theme(s1,x5) & n_menu(x4) & Actor(e1,x3) & v_look(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_celebrate(e1) & n_birthday(x2))