Premise:
"As he passed the recess, he turned his head slowly."
Hypothesis: He trotted past the recess, nodding happily.

no

Premise:
"To get a sense of the long-term implications of alternative national saving paths, we examined the economic outlook over the next 75 years under two different (1) gross national saving remains constant at its 2000 share of GDP-18."
Hypothesis: It is somewhat difficult to measure the long term implications of alternative national saving paths.

it is not possible to tell

Premise:
"So, if the war was constitutional in 1991-92, the war is still constitutional now--nothing in the resolution specified a time limit."
Hypothesis: The resolution does not specify when the war stops being constitutional.
yes