This simple fact of sewing makes it very difficult to automate the process.
( ( ( This ( simple fact ) ) ( of sewing ) ) ( ( makes ( it ( ( very difficult ) ( to ( automate ( the process ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT This) (JJ simple) (NN fact)) (PP (IN of) (NP (NN sewing)))) (VP (VBZ makes) (S (NP (PRP it)) (ADJP (RB very) (JJ difficult)) (S (VP (TO to) (VP (VB automate) (NP (DT the) (NN process))))))) (. .)))
The plain idea of sewing renders it hard to automate the process.
( ( ( The ( plain idea ) ) ( of sewing ) ) ( ( renders ( it ( hard ( to ( automate ( the process ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ plain) (NN idea)) (PP (IN of) (NP (NN sewing)))) (VP (VBZ renders) (S (NP (PRP it)) (ADJP (JJ hard) (S (VP (TO to) (VP (VB automate) (NP (DT the) (NN process)))))))) (. .)))