( ( ( The location ) ( of ( the fulcrum ) ) ) ( ( helps ( determine ( ( how well ) ( ( the lever ) ( will ( perform work ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN location)) (PP (IN of) (NP (DT the) (NN fulcrum)))) (VP (VBZ helps) (VP (VB determine) (SBAR (WHADVP (WRB how) (RB well)) (S (NP (DT the) (NN lever)) (VP (MD will) (VP (VB perform) (NP (NN work)))))))) (. .)))
The location of the fulcrum helps determine how well the lever will perform work.
(ROOT (S (NP (DT The) (JJ long) (NN bone)) (VP (VBP work) (PP (IN as) (NP (NN lever)))) (. .)))