A group of people at a restaurant about to take shots.
The people at the restaurant are celebrating something.
People taking shots aren't always celebrating something.
exists p1 s1 x1 x2 x3 x4.(a_topic(x1) & at(x1,x3) & Topic(s1,p1) & Actor(s1,x4) & a_about(s1) & exists e1 x5.(Theme(e1,x5) & Actor(e1,x4) & v_take(e1) & n_shot(x5)) & (x3 = x4) & n_restaurant(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(n_restaurant(x2) & n_people(x1) & Theme(e1,x3) & Actor(e1,x1) & v_celebrate(e1) & n_thing(x3) & at(x1,x2))