Premise:
"Santa Barbara, built by the Carthaginians in the third century b.c., was so well fortified that for nearly 2,000 years nobody conquered it."
Hypothesis: Santa Barbara has never been conquered.

yes

Premise:
"Finally, there are some operational changes that would probably be made."
Hypothesis: There is no such thing as an operational change.

no

Premise:
"A story says robot insects will soon be deployed by the military."
Hypothesis: The military would never use robots in its missions.
no