Activity: Write a Villanelle

As it says in Wikipedia, "[a] villanelle...is a nineteen-line poetic form consisting of five tercets followed by a quatrain. There are two refrains and two repeating rhymes, with the first and third line of the first tercet repeated alternately until the last stanza, which includes both repeated lines." A villanelle should adhere to the following format in which capital letters represent the refrains and lower case letter represent rhymes.

A1
b
A2

a
b
A1

a
b
A2

a
b
A1

a
b
A2

a
b
A1
A2

For a simplified challenge, try writing without the rhyme scheme.