The  Rubliw was invented by American poet Richard Wilbur.  It is a 9 line form that is framed as a message to an individual person or to a larger group of people.  The Rubliw is monorhymed and bears the following iambic structure.

L1 – monometer
L2 – dimeter
L3 – trimeter
L4 – tetrameter
L5 – pentameter
L6 – tetrameter
L7 – trimeter
L8 – dimeter
L9 – monometer