People are sitting down in front of a white banner.
A group of people are seated at a table.
Just because the people are sitting in front of a banner doesn't mean they are seated at table.
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 x1 x2 x3.(at(e1,x3) & n_table(x3) & Theme(e1,x1) & v_seat(e1) & of(x1,x2) & n_people(x2) & n_group(x1))