Assertion: sleeping bag's temperature rating | /r/HasProperty | useful
Facets:
value: for comparing bags
type: PURPOSE
Source sentences:
text: Lab-tested temperature ratings (as indicated by “EN” or “ISO” ratings) are useful for making an apples-to-apples comparison between sleeping bags from different brands.
text: Still, temperature ratings can be useful for estimating how warm a bag is.
text: The temperature rating gives you a general idea about performance and is useful for comparing bags.