A form invented on AllPoetry.com by Gloria Kim, aka Porphery.
It is a single verse of five iambic tetrameter lines in monorhyme
which answers some asked or un-asked question.
Why Do Cats Purr
While dogs can bark and growl and grrrr
and guard, and stealthy thieves deter,
which earned their place with men for sure,
The cats had only pretty fur,
so asked if God would add a purr.