How to convert HTML entities to plain text in YQL or Y! Pipes?

I have the source 开发者_StackOverflow社区in html entities (eg: cover) I want to convert them into simple readable plain text (eg: abcdef...)

how can i do that using YQL or Yahoo Pipes? (eg: i want to convert cover into cover using YQL or Yahoo pipes)

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Use the following components:

• A yql stylesheet

select * from xslt where url="//foo.html" and stylesheet="//bar.xsl"

• An entity declaration

  <!DOCTYPE xsl:stylesheet[
  <!ENTITY 99 "c">
  <!ENTITY 111 "o">
  <!ENTITY 118 "v">
  <!ENTITY 101 "e">
  <!ENTITY 114 "r">
  ]>
  

References

• XML Entity Definitions for Characters (2nd Edition)