Question and answer: Q: Given the sentence "A man standing in front of several people talking." is it true that "A man saw his friends."?
A: it is not possible to tell
Explanation: Talking to a group of people does not mean that man saw his friends.

Question and answer: Q: If "A basketball player is taking a foul shot as his teammates and the opposing team watch." does that mean that "Several dogs are barking."?
Options:
- yes
- it is not possible to tell
- no
A: no
Explanation: The basketball player and the dogs are two different mammals and are doing different activities.

Question and answer: Q: Given the sentence "A skateboarder uses a ramp." is it true that "A man is doing an impressive skateboard trick."?
A: it is not possible to tell
Explanation:
All skateboarders aren't men and using a ramp doesn't mean the skateboarder is doing a skateboard trick.