A group of gymnasts performing.
The gymnasts are all women
We don't know if the gymnasts were women.
exists e1 x1 x2 x3.(a_topic(x1) & Actor(e1,x3) & v_perform(e1) & (x1 = x3) & of(x1,x2) & n_gymnast(x2) & n_group(x1))
exists p1 x1.(n_gymnast(x1) & all x2.(n_woman(x2) -> (x1 = x2)))