Assertion: endocrine system's gland | /r/CapableOf | secrete the hormone melatonin
Facets:
value: at night
type: TEMPORAL
value: in the absence of light
type: TEMPORAL
Source sentences:
text: For example, the pineal gland, located at the base of the brain, secretes the hormone melatonin, responsible for regulating sleep patterns.
text: The pineal gland synthesizes and secretes the hormone melatonin, an amine.
text: At night, in the absence of light, the pineal gland secretes the hormone melatonin.