Assertion: tyrosine | /r/HasProperty | needed as a building block
Facets:
value: to make norepinephrine
type: PURPOSE
value: for several important brain chemicals
type: PURPOSE
value: to make epinephrine
type: PURPOSE
Source sentences:
text: As a building block for several important brain chemicals, tyrosine is needed to make epinephrine, norepinephrine, serotonin, and dopamine, all of which work to regulate mood.