Three people giving a presentation before a crowd.
The three people are at a rave.
The people are at a rave or at a presentation.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_give(e1) & before(x3,x4) & n_crowd(x4) & n_presentation(x3) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists p1 x1.(n_people(x1) & card_eq_3(x1) & exists x2.(at(x1,x2) & n_rave(x2)))