Write a letter based on the following information.

以下列信息为基础写一封信。

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The software tentatively assigns each click a letter based on its frequency , then tests the message created by this assignment using statistical models of the English language .

这一软件尝试性地按频率指派给每一个点击一个字母，然后用英语的统计模式测试这一指派所产生的信息。

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Although the sums involved are very small in terms of its annual turnover, the Royal Mail says the proceeds are used to recoup part of the cost of its National Return Letter Centre based in Belfast, which aims to return undeliverable items to the sender wherever possible.

BBC: How much does Royal Mail make from undelivered parcels?

Each letter is also given a point value based on difficulty, and some even award extra points by doubling or tripling the letter or overall word score.

CNN: Apparently This Matters: Ruzzle

Or, do I read and write based on what Texas tells me based on a letter from Nov. 21st?

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