text: Yo, check it out, listen up, I got a story to tell,
  'Bout Axolotl limb stumps, it's gonna ring your bell.
  Dorsal-ventral confrontations, digits 2 and 3,
  But anterior-posterior pattern, just wait and see.
  
  We grafted them limbs, opposite sides collide,
  Different ploidy, yo, let the truth abide.
  Regenerated limbs, skeletal and muscle flow,
  Marked cells distributed, gotta let you know.
  
  Dorsal-ventral organization, it ain't the same,
  Abnormality levels, it's part of the game.
  After regeneration, some discontinuities remain,
  Others get resolved, yo, it's all in the game.
  
  Position-dependent action, that's the key,
  Resolution of discontinuities, let's agree.
  Cell marker analysis, it's all in the mix,
  Displaced cells across graft-host interface tricks.
  
  These data, yo, they lend support,
  Circumferential intercalation, it's a one-way sport.
  Directionally biased, that's the suggestion,
  Axolotl limbs, yo, they teach us a lesson.