Premise:
"At the top is an art gallery with changing exhibitions."
Hypothesis: The exhibitions in the art gallery change every so often.

yes

Premise:
"They play confidently, hustle, and never choke in the fourth quarter."
Hypothesis: They choke every time they get to the fourth quarter.

no

Premise:
"With a faint gesture of the hand, he indicated the figure on the bed. "
Hypothesis: He pointed to the figure on the bed with a faint gesture.
yes