People in native dress performing a dance.
People performing a dance.
Being in native dress performing is the same as performing.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_perform(e1) & n_dance(x4) & (x1 = x3) & in(x1,x2) & n_dress(x2) & a_native(s1) & Theme(s1,x2) & n_people(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_dance(x3) & (x1 = x2) & n_people(x1))