Assertion: valerian | /r/MadeOf | substance
Facets:
Source sentences:
text: Valerian contains a substance known as valerenic acid that is believed to affect gamma-aminobutyric acid (GABA) receptors in the brain.
text: Valerians contain one or more dietary ingredients (including vitamins; minerals; herbs or other botanicals; amino acids; and other substances) or their constituents;