A child playing in an inflatable pool.
A child swimming.
The child is playing while she's swimming
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_pool(x3) & a_inflatable(s1) & Theme(s1,x3) & n_playing(x1) & of(x1,x2) & n_child(x2))
exists x1 x2.(a_topic(x1) & n_swimming(x1) & of(x1,x2) & n_child(x2))