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Wikipedia is a free encyclopedia that is being written collaboratively by the readers of this web site. The site is a WikiWiki, meaning that anyone, including you, can edit any article right now by clicking on the edit this page link that appears in every Wikipedia article.

All of the site's content is covered by the GNU Free Documentation License. Contributions remain the property of their creators, while the copyleft licensing ensures that the content will always remain freely distributable and reproducible. See copyrights for more information.

Note: Wikipedia contains content that may be considered offensive, vulgar or profane by some users. See the content disclaimer for more information.

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