Premise:
"Hey, conquest means winnin' th' country, don't it?"
Hypothesis: Hey, doesn't conquest means winnin'th'country?

yes

Premise:
"Do you think you can do it?""
Hypothesis: Do you think you can train him?

it is not possible to tell

Premise:
"Similar reasoning could be useful to investigators who are concerned with national security leaks."
Hypothesis: Reasoning like this will limit the ability of investigators.
no