( ( In ( the ( human organism ) ) ) ( , ( DNA ( ( is ( organized ( into ( ( 23 pairs ) ( of chromosomes ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT the) (JJ human) (NN organism))) (, ,) (NP (NNP DNA)) (VP (VBZ is) (VP (VBN organized) (PP (IN into) (NP (NP (CD 23) (NNS pairs)) (PP (IN of) (NP (NNS chromosomes))))))) (. .)))
In the human organism, DNA is organized into 23 pairs of chromosomes.
(ROOT (S (NP (NNS Humans)) (VP (VBP have) (NP (NP (CD 23) (JJ pairs) (NNS pairs)) (PP (IN of) (NP (NNS chromosomes))))) (. .)))