I had written a note to myself to check on the word “itch“.  It’s obvious to me that that’s a common word, yet it showed up when I filtered out The Ten Thousand most common words.  If that went incorrectly, there could be a huge problem with the whole filtering process.  But no!  “Itch” is around word 38,000 and “itching”, the word which is actually in the book at 12.076 comes in around 40,000.