A woman is kayaking on a lake
A woman is kayaking on a lake, getting ready for the race.
A woman kayaking on a lake is not necessarily getting ready for the race.
exists e1 x1 x2.(on(e1,x2) & n_lake(x2) & Actor(e1,x1) & v_kayake(e1) & n_woman(x1))
exists e1 e2 p1 x1 x2 x3 x4.(n_race(x4) & exists s1.(for(s1,x4) & Theme(s1,x3) & a_ready(s1)) & Topic(e2,p1) & Actor(e2,x3) & v_get(e2) & n_woman(x3) & on(e1,x2) & n_lake(x2) & Actor(e1,x1) & v_kayake(e1) & n_woman(x1))