Why is a raven like a writing desk?
Take out all but the first word of THE AUTHORS answer...
Excluding the word 'because', of course. Now, think of a word that rhymes with that and starts with 'gr'.
Now add an 'n'. Remember the number code? Well, replace any (s with B's, replace any &s with Ys, and replace any ^s with Cs.
Now put a = sign between the r and the i (The number 'i' in this case) and solve for {Insert the sign you got}i.
Got it? Now get the definite vowel on the opposite sign, and..