Question and answer: Q: Given the sentence "A man wearing a black jacket biking in front of a medical arts building." can we conclude that "An elderly man chains his bike outside the building."?
Options:
- yes
- it is not possible to tell
- no
A: no
Explanation: The man cannot be biking while he chains his bike up.

Question and answer: Q: Can we conclude from "A little girl brushes her teeth with an orange and blue toothbrush." that "A smart human brushes."?
Options:
- yes
- no
- it is not possible to tell
A: it is not possible to tell
Explanation: The little girl isn't necessarily smart just because she brushes her teeth.

Question and answer: Q: If "A construction worker is leaning against a traffic light pole in front of a construction site." does that mean that "A person leans against a pole."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation:
This person doesn't have to be a worker and they could be leaning against a regular pole.