A man is at a dinner with friends.
The friends are celebrating the man's birthday at his favorite restaurant.
You can not infer they are celebrating.
exists p1 x1.(exists x2 x3.(at(x1,x2) & with(x2,x3) & n_friend(x3) & n_dinner(x2)) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(n_restaurant(x4) & a_favorite(s1) & Theme(s1,x4) & of(x4,x2) & n_male(x2) & n_birthday(x3) & of(x3,x2) & n_man(x2) & n_friend(x1) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_celebrate(e1))