People are sitting down in front of a white banner.
The people are tearing a banner down
They cannot be both sitting down in front of the white banner and tearing it down simultaneously.
exists e1 s1 s2 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_banner(x3) & a_white(s2) & Theme(s2,x3) & n_front(x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e1 s1 x1 x2.(n_people(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_tear(e1) & n_banner(x2))