Woman teaching young boy how to swim.
Woman teaching young boy how to swim in the pool.
Just because a woman is teaching boy how to swim doesn't imply in the pool.
exists p1 s1 x1 x2 x3.(a_topic(x1) & Topic(x1,p1) & exists e1.(Actor(e1,x1) & v_swim(e1)) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & of(x1,x3) & n_teaching(x3) & (x1 = x2) & ne_nam_woman(x2))
exists p1 s1 x1 x2 x3 x4.(n_pool(x4) & a_topic(x1) & Topic(x1,p1) & exists e1.(in(e1,x4) & Actor(e1,x1) & v_swim(e1)) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & of(x1,x3) & n_teaching(x3) & (x1 = x2) & ne_nam_woman(x2))