A young boy plays outside on a sunny day on his slip and slide.
A child is playing with water.
A young boy is a child.    One is playing with water on a slip and slide.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(on(e1,x2) & on(x2,x3) & n_slide(x5) & n_slip(x4) & subset_of(x5,x3) & subset_of(x4,x3) & of(x3,x1) & n_male(x1) & n_day(x2) & a_sunny(s3) & Theme(s3,x2) & a_outside(s2) & Manner(e1,s2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(with(e1,x2) & n_water(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1))