( ( Chromosome 5 ) ( ( is ( one ( of ( ( the ( 23 pairs ) ) ( of ( chromosomes ( in humans ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Chromosome) (CD 5)) (VP (VBZ is) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (CD 23) (NNS pairs)) (PP (IN of) (NP (NP (NNS chromosomes)) (PP (IN in) (NP (NNS humans))))))))) (. .)))
Chromosome 5 is one of the 23 pairs of chromosomes in humans.
(ROOT (S (NP (NNS Humans)) (VP (VBP have) (NP (NP (CD 23) (JJ pairs) (NNS pairs)) (PP (IN of) (NP (NNS chromosomes))))) (. .)))