Substitute
Swap the occupant by a stated rule; keep its place, role and links.
Every noun moved seven along in the dictionary.
Seen in Jean Lescure, N + 7, an Oulipo constraint
Try it on your work
Take a model and swap one material for another throughout (all the wood becomes cork, say), leaving every shape and joint as it was. Stop when the last piece is swapped.
Take a paragraph and replace every verb with its opposite, leaving every other word where it is. Stop at the end of the paragraph.
Two members of a group swap roles for one meeting, the chair and the note-taker, say, and keep every rule of the two roles as it was. Stop at the end of the meeting.
How it has been used
Put one thing in the place of another and keep everything around it as it was: the understudy in the part, the new material in the old detail, the seventh noun along in place of the first. State the rule for choosing the replacement before you begin. The move forbids touching the place: only the occupant changes.
Where it leads
Grouped under Change what it is