( Muscles ( ( allow ( ( ( the ( smallest move ) ) , ) ( such ( as ( ( a twitch ) ( of ( ( ( ( ( ( the finger ) , ) or ) ( big movements ) ) , ) ( such ( as tumbling ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Muscles)) (VP (VBP allow) (NP (NP (DT the) (JJS smallest) (NN move)) (, ,) (PP (JJ such) (IN as) (NP (NP (DT a) (NN twitch)) (PP (IN of) (NP (NP (NP (DT the) (NN finger)) (, ,) (CC or) (NP (JJ big) (NNS movements)) (, ,)) (PP (JJ such) (IN as) (S (VP (VBG tumbling)))))))))) (. .)))
Muscles allow the smallest move, such as a twitch of the finger, or big movements, such as tumbling.
(ROOT (S (NP (JJ Intrinsic) (NNS muscles)) (VP (VBP allow) (NP (PRP$ your) (NNS fingers)) (S (VP (TO to) (VP (ADVP (RB also)) (VB make) (NP (NP (JJ precise) (NNS movements)) (PP (IN for) (NP (NNS actions)))))))) (. .)))