A colorfully costumed group of women and children performs a dance on stage.
A group performs a dance on stage.
"A group" is a rephrasing of  "a colorfully costumed group".
exists e2 e1 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_stage(x6) & Theme(e2,x5) & Actor(e2,x1) & v_perform(e2) & n_dance(x5) & of(x1,x2) & n_child(x4) & n_woman(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_group(x1) & Theme(e1,x1) & v_costume(e1) & r_colorfully(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_dance(x2) & n_group(x1))