Big Sisters helps fill that void by matching caring, responsible adult volunteers with at-risk girls, ages 8-14.
( ( Big Sisters ) ( ( helps ( ( fill ( that void ) ) ( by ( ( matching ( caring ( , ( responsible ( adult volunteers ) ) ) ) ) ( with ( ( ( at-risk girls ) , ) ( ages 8-14 ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Big) (NNS Sisters)) (VP (VBZ helps) (VP (VB fill) (NP (DT that) (NN void)) (PP (IN by) (S (VP (VBG matching) (NP (JJ caring) (, ,) (JJ responsible) (NN adult) (NNS volunteers)) (PP (IN with) (NP (NP (JJ at-risk) (NNS girls)) (, ,) (NP (NNS ages) (CD 8-14))))))))) (. .)))
The Big Sisters have undergone background checks before being paired with the children.
( ( The ( Big Sisters ) ) ( ( have ( ( undergone ( background checks ) ) ( before ( being ( paired ( with ( the children ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Big) (NNS Sisters)) (VP (VBP have) (VP (VBN undergone) (NP (NN background) (NNS checks)) (PP (IN before) (S (VP (VBG being) (VP (VBN paired) (PP (IN with) (NP (DT the) (NNS children))))))))) (. .)))