Premise:
"To most participants, the pig symbolizes greed."
Hypothesis: To most politicians a pig is a symbol of greed.

it is not possible to tell

Premise:
"I saw a group of people who looked out of place."
Hypothesis: I saw people who didn't fit in.

yes

Premise:
"If he does a better job, those citizenships will become more valuable, and he'll get a better price for them."
Hypothesis: Citizenship and pricing will get worse if he does a better job.
no