( Fermentation ( ( is ( ( ( a type ) ( of respiration ) ) ( that ( ( does n't ) ( use oxygen ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Fermentation)) (VP (VBZ is) (NP (NP (DT a) (NN type)) (PP (IN of) (NP (NN respiration))) (SBAR (WHNP (WDT that)) (S (VP (VBZ does) (RB n't) (VP (VB use) (NP (NN oxygen)))))))) (. .)))
Fermentation is a type of respiration that doesn't use oxygen.
(ROOT (S (NP (NNP Fermentation)) (VP (VBZ does) (RB not) (VP (VB use) (NP (NN oxygen)))) (. .)))