( ( Once ( ( the ( amino ( acid-tRNA complex ) ) ) ( is bound ) ) ) ( ( the ribosome ) ( ( reads ( ( ( the ( next codon ) ) and ) ( the ( complementary ( amino ( acid-tRNA ( complex binds ) ) ) ) ) ) ) . ) ) )
(ROOT (S (SBAR (IN Once) (S (NP (DT the) (JJ amino) (JJ acid-tRNA) (NN complex)) (VP (VBZ is) (ADJP (VBN bound))))) (NP (DT the) (NN ribosome)) (VP (VBZ reads) (NP (NP (DT the) (JJ next) (NN codon)) (CC and) (NP (DT the) (JJ complementary) (JJ amino) (JJ acid-tRNA) (JJ complex) (NNS binds)))) (. .)))
Once the amino acid-tRNA complex is bound the ribosome reads the next codon and the complementary amino acid-tRNA complex binds.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (DT a) (NN chain)) (PP (IN of) (NP (JJ amino) (NNS acids)))) (VP (VBZ reaches) (NP (DT a) (NN stop) (NN codon))))) (, ,) (VP (VBN released) (PP (IN from) (NP (DT the) (NN ribosome)))) (. .)))