Assertion: tyrosine | /r/HasProperty | indispensable amino acid
Facets:
value: for the skin pigment
type: PURPOSE
value: conditionally
type: MANNER
value: for melanin
type: TRANSITIVE-OBJECT
Source sentences:
text: Tyrosine is a conditionally indispensable amino acid required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin.