( Genes ( ( are ( composed ( of ( DNA ( located ( in ( the nucleus ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Genes)) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (NP (NNP DNA)) (VP (VBN located) (PP (IN in) (NP (DT the) (NN nucleus)))))))) (. .)))
Genes are composed of DNA located in the nucleus.
(ROOT (S (NP (NNS Genes)) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (NN dna))))) (. .)))
Genes are composed of dna.