Premise:
"yeah for a pair of tennis shoes"
Hypothesis: For a pair of tennis shoes.

yes

Premise:
"In petitioners' view, the restriction operates neither to maintain the current welfare system nor insulate it from attack; rather, it helps the current welfare system function in a more efficient and fair manner by removing from the program complex challenges to existing welfare laws."
Hypothesis: The petitioners would like to prevent criticism of the welfare system.

no

Premise:
"Enclosed by the mountains of the Galilee and the Golan, this azure freshwater lake is surrounded by orchards, banana plantations, kibbutzim, and Old and New Testament sites."
Hypothesis: There is no lake between the Golan and Galilee mountains.
no