Premise:
"But much more than the individual monuments handsome but hardly grandiose, because of the restricted spaces available it is the general atmosphere of the town that gives it its special magic."
Hypothesis: The town's many wide-open spaces give it a special airy feel.

no

Premise:
"I had often before noticed that, if anything excited him, his eyes turned green like a cat's. "
Hypothesis: I had noticed that his eyes showed his excitement when he talked about the battle.

it is not possible to tell

Premise:
"This meeting was originally scheduled for September 13 - 15, 2001, but was postponed in the aftermath of the September 11th attack on the U.S."
Hypothesis: This meeting would talk about national security and the spendings towards homeland security.
it is not possible to tell