( ( The ocean ) ( ( housed ( ( ( ( 3 species ) ( of fish ) ) and ) ( ( one species ) ( of algae ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN ocean)) (VP (VBN housed) (NP (NP (NP (CD 3) (NNS species)) (PP (IN of) (NP (NN fish)))) (CC and) (NP (NP (CD one) (NNS species)) (PP (IN of) (NP (NN algae)))))) (. .)))
The ocean housed 3 species of fish and one species of algae.
(ROOT (S (NP (RBS Most) (JJ red) (NN algae) (NNS species)) (VP (VBP live) (PP (IN in) (NP (NNS oceans)))) (. .)))