Suits and pants require thread colors that match or blend with the shell fabric, and it is important to reduce the number of thread changes the sewing operator has to make.
( ( ( ( ( ( ( Suits and ) pants ) ( require ( ( thread colors ) ( that ( ( match or ) ( blend ( with ( the ( shell fabric ) ) ) ) ) ) ) ) ) , ) and ) ( it ( is ( important ( to ( reduce ( ( ( the number ) ( of ( thread changes ) ) ) ( ( the ( sewing operator ) ) ( has ( to make ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Suits) (CC and) (NNS pants)) (VP (VBP require) (NP (NP (NN thread) (NNS colors)) (SBAR (WHNP (WDT that)) (S (VP (VP (VB match)) (CC or) (VP (VB blend) (PP (IN with) (NP (DT the) (JJ shell) (NN fabric)))))))))) (, ,) (CC and) (S (NP (PRP it)) (VP (VBZ is) (ADJP (JJ important) (S (VP (TO to) (VP (VB reduce) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NN thread) (NNS changes))) (SBAR (S (NP (DT the) (VBG sewing) (NN operator)) (VP (VBZ has) (S (VP (TO to) (VP (VB make)))))))))))))) (. .)))
Thread colors in suits don't have to match with the shell fabric
( ( ( Thread colors ) ( in suits ) ) ( ( do n't ) ( have ( to ( match ( with ( the ( shell fabric ) ) ) ) ) ) ) )
(ROOT (S (NP (NP (JJ Thread) (NNS colors)) (PP (IN in) (NP (NNS suits)))) (VP (VBP do) (RB n't) (VP (VB have) (S (VP (TO to) (VP (VB match) (PP (IN with) (NP (DT the) (JJ shell) (NN fabric))))))))))