Such stitching generally outlasts the fabric of jeans, as one can see from looking at the holey knees of jeans worn by many teenagers.
( ( Such stitching ) ( generally ( ( ( ( outlasts ( ( the fabric ) ( of jeans ) ) ) , ) ( as ( one ( can ( see ( from ( looking ( at ( ( the ( holey knees ) ) ( of ( jeans ( worn ( by ( many teenagers ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (JJ Such) (NN stitching)) (ADVP (RB generally)) (VP (VBZ outlasts) (NP (NP (DT the) (NN fabric)) (PP (IN of) (NP (NNS jeans)))) (, ,) (SBAR (IN as) (S (NP (PRP one)) (VP (MD can) (VP (VB see) (PP (IN from) (S (VP (VBG looking) (PP (IN at) (NP (NP (DT the) (JJ holey) (NNS knees)) (PP (IN of) (NP (NP (NNS jeans)) (VP (VBN worn) (PP (IN by) (NP (JJ many) (NNS teenagers)))))))))))))))) (. .)))
Such stitching usually gives out before the fabric of the jeans does.
( ( Such stitching ) ( usually ( ( ( gives out ) ( before ( ( ( the fabric ) ( of ( the jeans ) ) ) does ) ) ) . ) ) )
(ROOT (S (NP (JJ Such) (NN stitching)) (ADVP (RB usually)) (VP (VBZ gives) (PRT (RP out)) (SBAR (IN before) (S (NP (NP (DT the) (NN fabric)) (PP (IN of) (NP (DT the) (NNS jeans)))) (VP (VBZ does))))) (. .)))