several people are sitting at computer desks in a messy office.
People working in an office.
When one is working at a desk, one is sitting.
exists e1 s1 s2 x1 x2 x3 x4.(in(e1,x4) & n_office(x4) & a_messy(s2) & Theme(s2,x4) & at(e1,x2) & n_desk(x2) & of(x2,x3) & n_computer(x3) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_office(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_people(x1))