the performances of the children , untrained in acting , have an honesty and dignity that breaks your heart . 
(ROOT (S (NP (NP (NP (DT the) (NNS performances)) (PP (IN of) (NP (DT the) (NNS children)))) (, ,) (ADJP (JJ untrained) (PP (IN in) (NP (NN acting)))) (, ,)) (VP (VBP have) (NP (NP (DT an) (NN honesty) (CC and) (NN dignity)) (SBAR (WHNP (WDT that)) (S (VP (VBZ breaks) (NP (PRP$ your) (NN heart))))))) (. .)))
(ROOT (S (NP (NP (NP (DT ) (NNS )) (PP (IN ) (NP (DT ) (NNS )))) (, ) (ADJP (JJ ) (PP (IN ) (NP (NN )))) (, )) (VP (VBP ) (NP (NP (DT ) (NN ) (CC ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (NP (PRP$ ) (NN ))))))) (. )))