Teacher:Determine whether there has been any questions asked by the speaker in the dialogue or not. If there has been a question in the dialogue then the output Yes otherwise output No.
Teacher: Now, understand the problem? Solve this instance: First you add the washing powder then you add the clothes .  I take it you've done this before ?  Yes , for the last 20 years .  Good . 
Student:

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
Yes