Poetic License

The Poetic License is both a poem and a permissive BSD-styled license, originally based on the text of the MIT and ISC licenses. The two-clauses follow the disclaimer, both rendered as five line limericks. Variations of the license notice, since first published in 2005, differ slightly, typically in singular or plural attribution.
License terms
The license is as follows:
(c) <year> <copyright holders>

This work ‘as-is’ we provide.
No warranty, express or implied.
We’ve done our best,
to debug and test.
Liability for damages denied.

Permission is granted hereby,
to copy, share, and modify.
Use as is fit,
free or for profit.
On this notice these rights rely.
Comparison to other licenses
The Poetic License is most similar to the MIT License except the ordering of terms and disclaimer. Note the MIT License disclaimer begins:
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, ... IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, ...
The first line of the terms is a reordering of the MIT wording 'Permission is hereby granted', but follows the ISC wording more closely thereafter:

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
Aside from rhyming, the Poetic License is unique in its use of the first person, rather than passive legalese form, as well as the assurance of best effort. Many such licenses specifically distinguish between text and software, while the Poetic License may be applied to any work. Unlike other BSD-styled licenses, which explicitly require the copyright notice and 'this' notice to appear in all copies of software and documentation, the Poetic License is vague as to the condition upon which these rights are granted. 'These rights, on this notice, rely' implies that the notice must remain in all copies, shared and/or modified.

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