Assertion: carbonic acid | /r/HasProperty | useful
Facets:
value: moderately
type: DEGREE
value: for tasks
type: PURPOSE
Source sentences:
text: Nearly all carbonated soft drinks contain carbonic acid, which is moderately useful for tasks such as removing stains and dissolving rust deposits (although plain soda water is much better for some of these purposes than Coca-Cola or other soft drinks, as it doesn’t leave a sticky sugar residue behind).