Assertion: sunscreen's spf | /r/CapableOf | indicate the level of protection
Facets:
Source sentences:
text: The SPF only indicates the level of protection against the sun's ultraviolet B rays, which are called UVBs for short.﻿﻿ Initially, UVB rays were thought to be the only UV rays to worry about, since they are shorter in length and cause sunburn.
text: Well the answer is simple; SPF indicates the level of protection from UVB rays while PA indicates the level of protection from UVA rays.