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Hello, I'm SK2242. I noticed that you added or changed content in an article, British Rail Class 484, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. SK2242 (talk) 22:23, 19 November 2020 (UTC)