People are sitting down in front of a white banner.
The white banner is behind the people sitting down.
When people are in front of white banner then the banner will be behind only.
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 p1 s1 x1 x2.(n_people(x2) & n_banner(x1) & a_white(s1) & Theme(s1,x1) & exists e1 s2 x3.(behind(x1,x2) & a_down(s2) & Manner(e1,s2) & Actor(e1,x3) & v_sit(e1) & (x2 = x3)))