Assertion: formaldehyde | /r/Causes | dryness
Facets:
Source sentences:
text: Formaldehyde gas in ambient air can give a perception of dry air (as formaldehyde causes dryness) or “standing air” or air that “lacks oxygen” or lacks some form of vitality or “freshness.
text: It can give a perception of dry air (as formaldehyde causes dryness) or “standing air” or air that “lacks oxygen” or some kind of needed vitality.