Premise: The Astronomer broke in again.

Hypothesis: The smoker kept quiet.
Answer: no

Premise: Personal saving plays a dual role, ensuring both individuals' retirement security and the nation's economic security.

Hypothesis: Personal saving plays a single role in economic security.
Answer: no

Premise: Nelson also carried out what was in effect a coup d'etat at Rockefeller Center, forcing out the retainers loyal to his father so that he could take over himself.

Hypothesis: Nelson went through Rockefeller Center and fired anyone loyal to his father, but bought them lunch first.
Answer: it is not possible to tell

Premise: Let Shannon think he was backing down.

Hypothesis: They wanted Shannon to think that he was giving up so that they could surprise him.
Answer: it is not possible to tell