( ( ( ( ( ( Most ( hermit ( crab species ) ) ) ( live ( on ( the ( ocean floor ) ) ) ) ) , ) but ) ( many ( live ( on land ) ) ) ) . )
(ROOT (S (S (NP (RBS Most) (JJ hermit) (NN crab) (NNS species)) (VP (VBP live) (PP (IN on) (NP (DT the) (NN ocean) (NN floor))))) (, ,) (CC but) (S (NP (DT many)) (VP (VBP live) (PP (IN on) (NP (NN land))))) (. .)))
Most hermit crab species live on the ocean floor, but many live on land.
(ROOT (S (NP (RBS Most) (JJ red) (NN algae) (NNS species)) (VP (VBP live) (PP (IN in) (NP (NNS oceans)))) (. .)))