( ( TYROSINE Tyrosine ) ( ( is ( ( a ( non-essential ( amino acid ) ) ) ( that ( is ( ( used ( by ( the ( thyroid gland ) ) ) ) ( to ( produce ( one ( of ( ( ( the ( major hormones ) ) , ) Thyroxin ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP TYROSINE) (NNP Tyrosine)) (VP (VBZ is) (NP (NP (DT a) (JJ non-essential) (JJ amino) (NN acid)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN used) (PP (IN by) (NP (DT the) (NN thyroid) (NN gland))) (S (VP (TO to) (VP (VB produce) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (JJ major) (NNS hormones)) (, ,) (NP (NNP Thyroxin)))))))))))))) (. .)))
TYROSINE Tyrosine is a non-essential amino acid that is used by the thyroid gland to produce one of the major hormones, Thyroxin.
(ROOT (S (NP (NNS Catecholamines)) (VP (VBP are) (NP (NP (DT a) (NN class)) (PP (IN of) (NP (JJ amine) (NNS hormones))) (SBAR (WHNP (WHNP (DT that)) (NP (WRB when) (JJ synthesised))) (S (VP (VBP form) (NP (DT the) (JJ amino) (NN acid) (NN tyrosine))))))) (. .)))