A female gymnast holds herself vertically above uneven bars.
A gymnest competing.
holds herself vertically above uneven bars  doesn't always mean competing.
exists e1 s1 s2 x1 x2.(r_vertically(e1) & above(e1,x2) & n_bar(x2) & a_uneven(s2) & Theme(s2,x2) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_female(x2) & n_gymnast(x1) & a_female(s1) & Theme(s1,x1))
exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_gymnest(x1))