Audience at an event with the stage lights as the backdrop.
The event is just beginning.
The stage lights may be on at a time other than when the event is just beginning.
exists x1 x2 x3 x4 x5.(n_backdrop(x5) & n_light(x3) & of(x3,x4) & n_stage(x4) & a_topic(x1) & at(x1,x2) & as(x2,x5) & with(x2,x3) & n_event(x2) & n_audience(x1))
exists e1 s1 x1.(n_event(x1) & a_just(s1) & Manner(e1,s1) & Actor(e1,x1) & v_begin(e1))