Premise:
"Fear began to betray itself on Barik's face."
Hypothesis: Barik was frightened.

yes

Premise:
"so i I suppose that the housing market is uh you know it is on the on the down side right now"
Hypothesis: So I've heard the housing market has never been better.

no

Premise:
"But the Smithsonian calls Kennewick Man a national treasure, and anthropologists want to conduct DNA tests, which might offer clues to his origin."
Hypothesis: The Smithsonian is unsure of Kennewick Man's origin.
yes