We are given a chain of reassignments of labels for different roles:
- ‘cook’ → called ‘butler’
- ‘butler’ → called ‘manager’
- ‘manager’ → called ‘teacher’
- ‘teacher’ → called ‘clerk’
- ‘clerk’ → called ‘principal’
The question asks: Who will teach in the class?
To solve this, we need to find the actual profession that is being referred to as a "teacher" based on the given naming chain.
From the mapping:
‘manager’ is called ‘teacher’ → So, the person who actually performs the job of a manager is now called a teacher.
But we want to know who actually does the job of a teacher (i.e., who teaches in class).
From the mapping:
‘teacher’ is called ‘clerk’ → So, the person who actually teaches is now called a clerk.
Conclusion:
The person who teaches in the class is actually called a Clerk.