Which of the following sentences is nonsensical?
Options:
- Sentence A: "there is a telephone inside the entrance hall"
- Sentence B: "there is a train inside the entrance hall"

Hmmm, let me think. I want to lay out the solution in details.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The entrance hall is no place for a train. The answer is Sentence B.