Premise:
"This rule amends FDA regulations to provide that animal protein derived from mammalian tissues for use in ruminant feed is a food additive subject to certain provisions in the Federal Food, Drug, and Cosmetic Act (21 U.S.C."
Hypothesis: The rule is an amendment to the FDA regulations for food additives put into ruminant feed.

yes

Premise:
"Or between Afrikaner white supremacism and post-apartheid multiracial democracy?"
Hypothesis: There is no difference between post-apartheid multiracial democracy and Afrikaner white supremacy.

no

Premise:
"In front of us were "the detectives in charge of the case." The well-known glib phraseology passed rapidly through my mind in the interval before Poirot opened the proceedings. "
Hypothesis: Poirot was ready to make a bold claim that would blow the case wide open.
it is not possible to tell