Question and answer: Q: If "A group of people observing a group of birds." does that mean that "A group of people observing birds."?
Options:
- yes
- it is not possible to tell
- no
A: yes
Explanation: Observing a group of birds is a way of observing birds.


Question and answer: Q: Can we conclude from "An employee is vacuuming a building model." that "The employee is eating a lobster."?
Options:
- yes
- no
- it is not possible to tell
A: no
Explanation: The employee cannot be vacuuming and eating lobster at the same time.


Question and answer: Q: Given the sentence "Two guys are playing their musical instruments as they sit on a small ledge on a sidewalk near a building with a painting of a large sleeveless guy with his arms akimbo." can we conclude that "The musicians are performing on the curb."?
Options:
- yes
- it is not possible to tell
- no
A: yes
Explanation:
A curb is the name for small ledge on a sidewalk.