Woman swimming in a big race.
The woman is rowing a boat.
You cannot be rowing a boat and swimming simultaneously.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_race(x3) & a_big(s1) & Theme(s1,x3) & n_swimming(x1) & (x1 = x2) & ne_nam_woman(x2))
exists e1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_row(e1) & n_boat(x2))