Business people talk after making a presentation.
Business people are silently glaring at each other.
People cannot talk and be silently glaring at the same time.
exists e2 e1 x1 x2 x3.(after(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_make(e2) & n_presentation(x3) & Actor(e1,x1) & v_talk(e1) & n_people(x1) & of(x1,x2) & n_business(x2))
exists e1 s1 x1 x2.(a_silently(s1) & Manner(e1,s1) & all x3.(n_other(x3) -> at(e1,x3)) & Actor(e1,x1) & v_glare(e1) & n_people(x1) & of(x1,x2) & n_business(x2))