The people dressed in all white are having a good time.
The people dressed in all white are at a wedding.
White dressed people can stand anywhere not necessarily at wedding
exists e1 e2 s1 x1 x2 x3.(n_people(x1) & Theme(e2,x3) & Actor(e2,x1) & v_have(e2) & n_time(x3) & a_good(s1) & Theme(s1,x3) & all x4.(n_white(x4) -> in(e1,x4)) & Theme(e1,x2) & v_dress(e1) & (x1 = x2))
exists e1 p1 x1 x2.(n_people(x1) & exists x4.(at(x1,x4) & n_wedding(x4)) & all x3.(n_white(x3) -> in(e1,x3)) & Theme(e1,x2) & v_dress(e1) & (x1 = x2))