Answer the following question about this sentence:

The mirror in the bathroom fogged up.

What is the effect?
Ans: **The girl turned on the fan.**

Answer the following question about this sentence:

Air leaked out of the beach ball.

What is the cause?
Ans: **There was a hole in it.**

Answer the following question about this sentence:

The librarian located the book in the stacks.

What is the cause?
Ans:
**I requested the librarian's help.**