What was the question for this implicit rationale, and corresponding answer?
A curb is the name for small ledge on a sidewalk.
 The answer: yes
The question: 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