Leaving the British official who twice searched his luggage none the wiser, he managed by meticulous observation to memorize the principal features of the power loom well enough to produce his own version of it on his return to Boston.
( ( Leaving ( ( the ( British official ) ) ( who ( twice ( searched ( ( his ( luggage none ) ) ( the wiser ) ) ) ) ) ) ) ( , ( he ( ( ( managed ( by ( meticulous observation ) ) ) ( to ( memorize ( ( ( the ( principal features ) ) ( of ( the power ) ) ) ( ( loom ( well enough ) ) ( to ( ( ( produce ( ( his ( own version ) ) ( of it ) ) ) ( on ( his return ) ) ) ( to Boston ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG Leaving) (NP (NP (DT the) (JJ British) (NN official)) (SBAR (WHNP (WP who)) (S (ADVP (RB twice)) (VP (VBD searched) (NP (NP (PRP$ his) (JJ luggage) (NN none)) (ADJP (DT the) (JJR wiser))))))))) (, ,) (NP (PRP he)) (VP (VBD managed) (PP (IN by) (NP (JJ meticulous) (NN observation))) (S (VP (TO to) (VP (VB memorize) (S (NP (NP (DT the) (JJ principal) (NNS features)) (PP (IN of) (NP (DT the) (NN power)))) (VP (VB loom) (ADVP (RB well) (RB enough)) (S (VP (TO to) (VP (VB produce) (NP (NP (PRP$ his) (JJ own) (NN version)) (PP (IN of) (NP (PRP it)))) (PP (IN on) (NP (PRP$ his) (NN return))) (PP (TO to) (NP (NNP Boston)))))))))))) (. .)))
His power loom was considered a variant type from the original due to several operational and functional differences.
( ( His ( power loom ) ) ( ( was ( ( ( considered ( a ( variant type ) ) ) ( from ( the ( original due ) ) ) ) ( to ( several ( ( ( operational and ) functional ) differences ) ) ) ) ) . ) )
(ROOT (S (NP (PRP$ His) (NN power) (NN loom)) (VP (VBD was) (VP (VBN considered) (NP (DT a) (JJ variant) (NN type)) (PP (IN from) (NP (DT the) (JJ original) (NN due))) (PP (TO to) (NP (JJ several) (ADJP (JJ operational) (CC and) (JJ functional)) (NNS differences))))) (. .)))