Premise:
"Only her powders? The flush deepened as Cynthia replied: "Oh, yes, I did make up some sleeping powders for her once.""
Hypothesis: Cynthia swore she never made anything for her.

no

Premise:
"La Rochelle"
Hypothesis: La Roxanne.

no

Premise:
"In the spirit of the ongoing pile-on on journalists, I have to argue that journalists are to blame for rock pomposity."
Hypothesis: Journalists are to blame for their pompous rigidness.
yes