Identify the rhyme scheme in the two stanzas from frost's "the road not taken." two roads diverged in a yellow wood, and sorry i could not travel both and be one traveler, long i stood and looked down one as far as i could to where it bent in the undergrowth; then took the other, as just as fair, and having perhaps the better claim, because it was grassy and wanted wear; though as for that the passing there had worn them really about the same,