Premise:
"Adrin stared at the sword and then at Jon."
Hypothesis: Adrin imagined stabbing the man with the sword.

it is not possible to tell

Premise:
"Roy herself was predictably modest about The God 's success--not the best novel, the luckiest, she said."
Hypothesis: Roy wrote a novel called The God's Success.

yes

Premise:
"Like their counterparts on the left, they seem fully capable of reducing a reasoned argument to a war of insults for reasons of their own."
Hypothesis: The right can turn an argument into lots of insults.
yes