There are only two Harry Potter related pieces of logic that you need to solve the logic puzzle. They are both below, with the answers in white text in between the dashes - you'll need to highlight them with your cursor to make them show up.
The team that Gwenog Jones played for are the ---Holyhead Harpies---.
Ron's favourite team (who were perenially last) were the ---Chudley Cannons---.
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