Content rewriter

Hello. This project involves building a software (or rather a wordpress plugin) that will be able to auto rewrite the content (articles) using synonyms. This is kind of a big deal because a database of synonyms must be created. Also the text before and after an English word should be analyzed to create human readable new content. Eg: you can replace dog with canine in "the dog is good"? but you can't replace it in "hot dog" (cause hot canine would? change sense). Building such a large database for English language would be time consuming. I would be happy with a start-up database that would contain several hundreds synonyms. This database I will (in time) update and add new synonyms. So to sum it up this is what I would want: - a wordpress plugin - updatable database of synonyms- with several hundreds for start-up - phrase analyze capabilities during rewrite to create human readable? articles? (phrase synonyms and multiple words check - see the dog example) - explanation of work and coding so? I would be able to successfully update the plugin to work with new wordpress versions and also be able to update the database with one word and multiple words synonyms. - capitalization - if it is after the dot should be Dog not dog. - the plugin should rewrite content already posted... maybe the one posted under a certain user to differentiate between content to be rewritten? or not. - hints: use of a dictionary or an online thesaurus to build the database This should be it. Thank you for your bids.