Assertion: melatonin | /r/CapableOf | become available
Facets:
value: in 1994
type: TEMPORAL
value: over the counter
type: OTHER
value: as a dietary supplement
type: MANNER
Source sentences:
text: Discovered in the 1950s as a neurohormone (N-acetyl-5 methoxytryptamine) produced in the brain by the pineal gland from the amino acid tryptophan, melatonin became available as a dietary supplement in 1994.
text: In 1994, melatonin became available as an over-the-counter drug.
text: Melatonin was discovered in the 1950s and became available over the counter in 1994 as a dietary supplement.
text: Ever since melatonin became available over the counter in 1994, it has created a lot of controversy.