Through repetition of the task and coaching by experts, the operator would become very productive.
( ( Through ( repetition ( of ( ( the ( ( task and ) coaching ) ) ( by experts ) ) ) ) ) ( , ( ( the operator ) ( ( would ( become ( very productive ) ) ) . ) ) ) )
(ROOT (S (PP (IN Through) (NP (NP (NN repetition)) (PP (IN of) (NP (NP (DT the) (NN task) (CC and) (NN coaching)) (PP (IN by) (NP (NNS experts))))))) (, ,) (NP (DT the) (NN operator)) (VP (MD would) (VP (VB become) (ADJP (RB very) (JJ productive)))) (. .)))
Coaching by experts and repetition of the task are the most effective ways to produce a productive operator.
( ( Coaching ( by ( ( ( experts and ) repetition ) ( of ( the task ) ) ) ) ) ( ( are ( ( the ( ( most effective ) ways ) ) ( to ( produce ( a ( productive operator ) ) ) ) ) ) . ) )
(ROOT (S (S (VP (VBG Coaching) (PP (IN by) (NP (NP (NNS experts) (CC and) (NNS repetition)) (PP (IN of) (NP (DT the) (NN task))))))) (VP (VBP are) (NP (NP (DT the) (ADJP (RBS most) (JJ effective)) (NNS ways)) (SBAR (S (VP (TO to) (VP (VB produce) (NP (DT a) (JJ productive) (NN operator)))))))) (. .)))