If the sewing machine is correctly threaded, the operator then lifts the presser foot'a device that comes down on either side of the needle to hold the cloth'and, if the needle is in the up position, inserts the fabric.
( ( If ( ( the ( sewing machine ) ) ( ( is correctly ) threaded ) ) ) ( , ( ( the operator ) ( then ( ( lifts ( ( ( ( ( the ( presser foot ) ) ' ) ( ( a device ) ( that ( ( comes down ) ( on ( ( either side ) ( of ( the ( needle ( to ( ( ( hold ( the cloth ) ) ` ) and ) ) ) ) ) ) ) ) ) ) ) , ) ( if ( ( the needle ) ( is ( in ( ( ( the ( up position ) ) , ) ( inserts ( the fabric ) ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT the) (VBG sewing) (NN machine)) (VP (VBZ is) (ADVP (RB correctly)) (ADJP (JJ threaded))))) (, ,) (NP (DT the) (NN operator)) (ADVP (RB then)) (VP (VBZ lifts) (NP (NP (DT the) (NN presser) (NN foot)) ('' ') (NP (NP (DT a) (NN device)) (SBAR (WHNP (WDT that)) (S (VP (VBZ comes) (PRT (RP down)) (PP (IN on) (NP (NP (DT either) (NN side)) (PP (IN of) (NP (DT the) (NN needle) (S (VP (TO to) (VP (VB hold) (NP (DT the) (NN cloth)) (`` `) (ADVP (CC and))))))))))))) (, ,) (SBAR (IN if) (S (NP (DT the) (NN needle)) (VP (VBZ is) (PP (IN in) (NP (NP (DT the) (ADJP (RB up)) (NN position)) (, ,) (NP (NP (NNS inserts)) (NP (DT the) (NN fabric)))))))))) (. .)))
Sewing machines are some of the oldest machines ever created.
( ( Sewing machines ) ( ( are ( some ( of ( ( the ( oldest machines ) ) ( ever created ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sewing) (NNS machines)) (VP (VBP are) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (JJS oldest) (NNS machines)) (ADJP (RB ever) (VBN created)))))) (. .)))