( ( If ( ( the lever ) ( is ( long enough ) ) ) ) . )
(ROOT (FRAG (SBAR (IN If) (S (NP (DT the) (NN lever)) (VP (VBZ is) (ADJP (RB long) (JJ enough))))) (. .)))
If the lever is long enough.
(ROOT (S (NP (DT The) (JJ long) (NN bone)) (VP (VBP work) (PP (IN as) (NP (NN lever)))) (. .)))