Question and answer: Q: Given the sentence "A male hiker high in the mountains." can we conclude that "A guy is driving in the mountains."?
Options:
- yes
- it is not possible to tell
- no
A: no
Explanation: The guy can't be driving up a mountain while hiking up a mountain.

Question and answer: Q: Premise: "A man in a striped shirt is demonstrating a product."
Hypothesis: "The guy gives a presentation to his boss."
Do we know that the hypothesis entailed by the premise?
A: it is not possible to tell
Explanation: The man could be demonstrating a product to people who are not his boss.

Question and answer: Q: Can we conclude from "A man stands in a red shirt and blue jeans facing a man in black across tracks with an escalator in the background." that "The two men are at their desks."?
Options:
- yes
- no
- it is not possible to tell
A: no
Explanation:
If the men are at their desks they are not standing.