Implicating
urethral_knotting → knotting
urethral_knotting → urethral
Link to implication
Reason:
If a urethra is knotted, then there's knotting in the picture.
EDIT: The tag implication urethral_knotting -> knotting (forum #278517) has been approved by @bitWolfy.
Updated by auto moderator