children in colorful outfits on a stage
There are children on a stage.
There are children is a rewording of children.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & on(x2,x3) & n_stage(x3) & n_outfit(x2) & a_colorful(s1) & Theme(s1,x2) & n_child(x1))
exists p1 x1 x2 x3.((x1 = x2) & on(x2,x3) & n_stage(x3) & n_child(x2))