A group of people at a restaurant about to take shots.
The people are sipping water with lemon.
The group taking shots of alcohol cannot be the same people drinking water.
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_people(x1) & with(e1,x3) & n_lemon(x3) & Theme(e1,x2) & Actor(e1,x1) & v_sip(e1) & n_water(x2))