Engineers designed operations to take similar lengths of time to achieve line balancing.
( Engineers ( ( ( designed operations ) ( to ( ( take ( ( similar lengths ) ( of time ) ) ) ( to ( achieve ( line balancing ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Engineers)) (VP (VBD designed) (NP (NNS operations)) (S (VP (TO to) (VP (VB take) (NP (NP (JJ similar) (NNS lengths)) (PP (IN of) (NP (NN time)))) (S (VP (TO to) (VP (VB achieve) (NP (NN line) (NN balancing))))))))) (. .)))
According to engineers, operations work best when they all took less than an hour to finish.
( ( According ( to engineers ) ) ( , ( operations ( ( ( work best ) ( when ( they ( all ( ( took ( less ( ( than an ) hour ) ) ) ( to finish ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (VBG According) (PP (TO to) (NP (NNS engineers)))) (, ,) (NP (NNS operations)) (VP (VBP work) (ADVP (RBS best)) (SBAR (WHADVP (WRB when)) (S (NP (PRP they)) (VP (ADVP (DT all)) (VBD took) (NP (QP (JJR less) (IN than) (DT an) (NN hour))) (S (VP (TO to) (VP (VB finish)))))))) (. .)))