Assertion: melatonin | /r/CapableOf | improve sleep problems
Facets:
Source sentences:
text: Melatonin has also been used to treat infertility, to improve sleep problems caused by shift work, or to enhance athletic performance.
text: Melatonin has also been used to treat infertility, to improve sleep problems caused by shift work, or to enhance athletic performance.
text: Melatonin has also been used to treat infertility, to improve sleep problems caused by shift work, or to enhance athletic performance.