A woman on a horse wrangling a cow in a pen.
A farmer corrals her livestock.
The woman is not necessarily a farmer just because she is on a horse wrangling a cow in a pen. She wrangles a cow but that doesn't necessarily imply that she corrals her livestock, which would be more than one horse.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & in(e1,x5) & n_pen(x5) & Theme(e1,x4) & Actor(e1,x3) & v_wrangle(e1) & n_cow(x4) & (x2 = x3) & n_horse(x2) & n_woman(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_corral(e1) & n_livestock(x2) & of(x2,x1) & n_female(x1) & n_farmer(x1))