Given the task definition, example input & output, solve the new input case.
In this task, you are given a question and an answer. Answer "Yes" if the given answer correctly answers the question, otherwise answer "No".
Example: what latitude is tropic of cancer, Answer: It currently (Year 2013) lies at 23 26 15.143 north of the Equator.
Output: Yes
This is a good example, and the given answer correctly answers the question.

New input case for you: what the atmosphere on mercury, Answer: Mercury has a very tenuous and highly variable atmosphere (surface-bound exosphere ) containing hydrogen , helium , oxygen , sodium , calcium , potassium and water vapor , with a combined pressure level of about 1014 bar (1 nPa ).
Output:
Yes