Since a rhyme scheme is the repetitive form of letters coordinating with rhyming words. You would so to the lat word of each line giving it a letter, you start with A. The progress to the second line if it rhymes with the word in the line above it is also A but if it does not rhyme it will be B. You would continue going down the alphabet seeing if any lines match. I got ABCB DEFE GHIH JKGB LMC. Hope this helps!