Vivacious, stimulating parental behavior, including frequent questioning, instructing, and pointing out objects, is beneficial for reserved, inactive infants; it helps them become interested in and engaged with novel toys.
( ( ( ( Vivacious ( , ( ( ( ( ( ( ( stimulating ( ( ( parental behavior ) , ) ( including ( frequent questioning ) ) ) ) , ) instructing ) , ) and ) ( ( pointing out ) objects ) ) ( , ( is ( beneficial ( for ( reserved ( , ( inactive infants ) ) ) ) ) ) ) ) ) ) ; ) ( it ( helps ( them ( become ( ( ( interested in ) and ) ( engaged ( with ( novel toys ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Vivacious)) (, ,) (S (VP (VP (VBG stimulating) (NP (NP (JJ parental) (NN behavior)) (, ,) (PP (VBG including) (NP (JJ frequent) (VBG questioning))))) (, ,) (VP (VBG instructing)) (, ,) (CC and) (VP (VBG pointing) (PRT (RP out)) (NP (NNS objects))))) (, ,) (VP (VBZ is) (ADJP (JJ beneficial) (PP (IN for) (NP (JJ reserved) (, ,) (JJ inactive) (NNS infants)))))) (: ;) (S (NP (PRP it)) (VP (VBZ helps) (S (NP (PRP them)) (VP (VB become) (UCP (ADJP (JJ interested) (PP (IN in))) (CC and) (VP (VBN engaged) (PP (IN with) (NP (NN novel) (NNS toys))))))))) (. .)))
Stimulating behavior from parents helps them engage with novel toys.
( ( ( Stimulating behavior ) ( from parents ) ) ( ( helps ( them ( engage ( with ( novel toys ) ) ) ) ) . ) )
(ROOT (S (NP (NP (VBG Stimulating) (NN behavior)) (PP (IN from) (NP (NNS parents)))) (VP (VBZ helps) (S (NP (PRP them)) (VP (VB engage) (PP (IN with) (NP (NN novel) (NNS toys)))))) (. .)))