A little boy in a striped shirt going down a light and dark blue slide.
The boy is playing at the park.
Just because a boy is playing on a slide it does not mean he is at the park.  A boy does not have to be little.
exists e1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x2) & a_down(s5) & Manner(e1,s5) & Theme(e1,x4) & Actor(e1,x3) & v_go(e1) & n_slide(x6) & a_blue(s4) & Theme(s4,x6) & a_dark(s3) & Theme(s3,x6) & n_light(x5) & subset_of(x6,x4) & subset_of(x5,x4) & (x2 = x3) & n_shirt(x2) & a_striped(s2) & Theme(s2,x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_park(x2) & n_boy(x1) & at(e1,x2) & Actor(e1,x1) & v_play(e1))