( Nucleotides ( ( consist ( of ( ( ( ( ( ( a ( five-carbon sugar ) ) , ) ( a ( heterocyclic ( nitrogen-containing ( organic base ) ) ) ) ) , ) and ) ( a ( phosphate group ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Nucleotides)) (VP (VBP consist) (PP (IN of) (NP (NP (DT a) (JJ five-carbon) (NN sugar)) (, ,) (NP (DT a) (JJ heterocyclic) (JJ nitrogen-containing) (JJ organic) (NN base)) (, ,) (CC and) (NP (DT a) (JJ phosphate) (NN group))))) (. .)))
Nucleotides consist of a five-carbon sugar, a heterocyclic nitrogen-containing organic base, and a phosphate group.
(ROOT (S (NP (NP (DT The) (NN base)) (PP (IN of) (NP (NP (DT a) (NN nucleotide)) (PP (IN within) (NP (NN dna)))))) (VP (VBZ consists) (PP (IN of) (NP (NN nitrogen)))) (. .)))