People are either examining or buying books. They are either at a library or a bookstore.
The question and answer are below.
Premise: "People examine books in a library."
Hypothesis: "People are buying books at the bookstore."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
no

The vendor standing with his hands on his hips cannot be the one climbing a mountain.
The question and answer are below.
Premise: "A street vendor selling skewers is standing with his hands on his hips."
Hypothesis: "The vendor is climbing a mountain."
Do we know that the hypothesis entailed by the premise?
no

The snowboarder is either flipping down the staircase or performing a trick.
The question and answer are below.
Premise: "A snowboarder performs a trick by riding down the rail of a staircase."
Based on this premise, can we conclude that the hypothesis "Snowboarder flipping down staircase." is true?
Options:
- yes
- it is not possible to tell
- no
no