Categories checking ~ Strong English Knowledge needed

I've a site where there are list of artiles published near to 90,000. Each article is categorized under a single category. Your job is to log on to the admin panel provided. It shows the article title and the first few lines of the article and the category to which it is in now. If that article is surely fit on that category,you have to select 'Yes' (click the yes ICON), otherwise 'No'. I need someone with very strong English knowledge, who can go through the article description quickly and select the category chosen is right or not. ** No escrow. Payment only after 72 hours of completion of job after (random) checking your work. ** Strong English knowledge required ** Must be error free. 1 or 2% mistakes acceptable. But after start the work, stop at 5,000 articles finished, so that we can check your work. If there are too many mistakes on selecting the 'Yes' or 'No' answer, we will cancel the deal immediately and will assign the job to someone else. So don't place your bid if you are unsure about your English knowledge. ** No typing work involved. No copy/paste work. Just go through a couple of lines and press either the Yes Icon or No Icon according to the category the article is located. ** I need a flat rate bid for the total 90,000 tasks. Must finish within 48 hours. Total budget is not more than 75 US$. So if you can't do this for 75 US$ or less, don't place your bid here and waste my time!