( ( ( Early succession ) ( on two ) ) ( ( hemlock ( ( habitat types ) ( in ( northern Idaho ) ) ) ) . ) )
(ROOT (S (NP (NP (RB Early) (NN succession)) (PP (IN on) (NP (CD two)))) (VP (VBP hemlock) (NP (NP (NN habitat) (NNS types)) (PP (IN in) (NP (JJ northern) (NNP Idaho))))) (. .)))
Early succession on two hemlock habitat types in northern Idaho.
(ROOT (S (NP (JJ Secondary) (NN succession)) (VP (VBZ is) (NP (NP (DT the) (NN type)) (PP (IN of) (NP (NN succession))) (SBAR (WHNP (WDT that)) (S (VP (VBZ happens) (PP (IN after) (NP (NP (DT the) (NN destruction)) (PP (IN of) (NP (DT a) (NN habitat)))))))))) (. .)))