Assertion: endocrine system's gland | /r/CapableOf | release melatonin
Facets:
value: as a response
type: MANNER
value: in the absence of light
type: TEMPORAL
Source sentences:
text: The pineal gland is a pea-sized endrocine gland that releases melatonin, a hormone associated with the biological clock.
text: In the absence of light, the Pineal gland releases melatonin as a response to activating the sleep cycle.