Name a famous book written by the given author.
J.K. Rowling
A famous book written by J.K. Rowling is "Harry Potter and the Philosopher's Stone" (alternatively known as "Harry Potter and the Sorcerer's Stone" in some regions).
Complete the following task based on the instruction and optional input provided.### Instruction:
Name a famous book written by the given author.

### Input:
J.K. Rowling

### Output:
A famous book written by J.K. Rowling is "Harry Potter and the Philosopher's Stone" (alternatively known as "Harry Potter and the Sorcerer's Stone" in some regions).