A little boy in navy blue reaching up for a bar on a playground.
The little boy wanted to use the monkey bars
The first sentence could be interpreted as the boy reaching for a candy bar or similar while the second sentence clarifies that the boy is reaching for monkey bars, a common playground structure.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x2) & a_up(s2) & Manner(e1,s2) & for(e1,x5) & on(x5,x6) & n_playground(x6) & n_bar(x5) & Actor(e1,x4) & v_reach(e1) & (x2 = x4) & n_blue(x2) & of(x2,x3) & n_navy(x3) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 p1 s1 x1 x2 x3.(n_bar(x2) & of(x2,x3) & n_monkey(x3) & n_boy(x1) & a_little(s1) & Theme(s1,x1) & Topic(e1,p1) & Actor(e1,x1) & v_want(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_use(e2)))