( ( The ( DNA molecules ) ) ( ( are ( composed ( of ( ( two ( interconnected chains ) ) ( of ( nucleotides ( that ( form ( ( one DNA ) strand ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN DNA) (NNS molecules)) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (NP (CD two) (VBN interconnected) (NNS chains)) (PP (IN of) (NP (NP (NNS nucleotides)) (SBAR (WHNP (WDT that)) (S (VP (VBP form) (SBAR (S (NP (CD one) (NN DNA)) (VP (VBD strand))))))))))))) (. .)))
The DNA molecules are composed of two interconnected chains of nucleotides that form one DNA strand.
(ROOT (S (NP (NNP Dna)) (VP (VBZ consists) (PP (IN of) (NP (NP (CD two) (JJ long) (NNS chains)) (PP (IN of) (NP (NNS nucleotides)))))) (. .)))