Once upon a time, there was a young prince. This prince had a puzzle instructor, and one day he arrived in his instructor's chambers, only to find that there was only a note on his table.
I've left you this riddle, dear prince, you see,
This is a test, while I rest my knee.
There are plenty of reasons to find it absurd,
But the key comes in the form of a nine letter word.
Now, the young prince had been given tests like this before, and knew that he was simply to write his solution on the back of the note. He pondered it for a minute, then turned over the note and wrote down his answer, certain it was right.
What did the prince give as his solution?