The organizers of the fundraiser were chatting at registration.
The organizers of the fundraiser were fighting each other.
The organizers of a fundraiser wouldn't be fighting.
exists e1 x1 x2 x3.(n_fundraiser(x2) & n_organizer(x1) & at(e1,x3) & n_registration(x3) & Actor(e1,x1) & v_chat(e1) & of(x1,x2))
exists x1 x2.(n_fundraiser(x2) & n_organizer(x1) & all x3.(n_other(x3) -> exists e1.(Theme(e1,x3) & Actor(e1,x1) & v_fight(e1))) & of(x1,x2))