There are four people dressed in orange clothes walking down the street.
Three people are blue are sitting down.
The group has to consist of either four people or three people.  They cannot be walking and sitting at the same time.
exists p1 x1 x7.(n_street(x7) & exists e2 e1 x2 x3 x4 x5 x6.((x1 = x2) & in(e1,x4) & down(e2,x7) & Actor(e2,x6) & v_walk(e2) & (x4 = x6) & n_clothes(x4) & of(x4,x5) & n_orange(x5) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_people(x2) & card_eq_4(x2)))
exists e1 s1 s2 x1 x2.(a_down(s2) & Manner(e1,s2) & Actor(e1,x1) & v_sit(e1) & Theme(s1,x2) & a_blue(s1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))