A bunch of people at a campaign listening to a speaker.
The group of people are listening to him campaign.
The speaker is not necessarily campaigning, even though he is speaking at a campaign.
exists x1 x2 x3 x4 x5.(a_topic(x1) & to(x1,x5) & n_speaker(x5) & at(x1,x3) & n_listening(x3) & of(x3,x4) & n_campaign(x4) & of(x1,x2) & n_people(x2) & n_bunch(x1))
exists e1 x1 x2 x3.(n_male(x1) & n_group(x1) & to(e1,x1) & Theme(e1,x3) & Actor(e1,x1) & v_listen(e1) & n_campaign(x3) & of(x1,x2) & n_people(x2))