She responded by throwing down the block and turning to another activity.
( She ( ( responded ( by ( ( ( ( throwing down ) ( the block ) ) and ) ( turning ( to ( another activity ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP She)) (VP (VBD responded) (PP (IN by) (S (VP (VP (VBG throwing) (PRT (RP down)) (NP (DT the) (NN block))) (CC and) (VP (VBG turning) (PP (TO to) (NP (DT another) (NN activity)))))))) (. .)))
She responded by tossing the block, and engaging in reading a book.
( She ( ( ( ( ( responded ( by ( tossing ( the block ) ) ) ) , ) and ) ( engaging ( in ( reading ( a book ) ) ) ) ) . ) )
(ROOT (S (NP (PRP She)) (VP (VP (VBD responded) (PP (IN by) (S (VP (VBG tossing) (NP (DT the) (NN block)))))) (, ,) (CC and) (VP (JJ engaging) (PP (IN in) (S (VP (VBG reading) (NP (DT a) (NN book))))))) (. .)))