At eight or ten stitches an inch, it is possible to seam thirteen to sixteen or more inches a second.
( ( At ( ( ( ( eight or ) ten ) stitches ) ( an inch ) ) ) ( , ( it ( ( is ( possible ( to ( ( seam thirteen ) ( to ( ( sixteen ( ( or more ) inches ) ) ( a second ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (QP (CD eight) (CC or) (CD ten)) (NNS stitches)) (NP (DT an) (NN inch)))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ possible) (S (VP (TO to) (VP (VB seam) (NP (NN thirteen)) (S (VP (TO to) (VP (VB sixteen) (NP (QP (CC or) (JJR more)) (NNS inches)) (NP (DT a) (NN second)))))))))) (. .)))
It's impossible to seam more than 13 inches a second.
( It ( ( 's ( impossible ( to ( ( seam ( ( more ( than 13 ) ) inches ) ) ( a second ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ 's) (ADJP (JJ impossible) (S (VP (TO to) (VP (VB seam) (NP (QP (JJR more) (IN than) (CD 13)) (NNS inches)) (NP (DT a) (NN second))))))) (. .)))