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The Tierney article is more difficult, at least by Gunning Fog Index, which suggests 18 years of education for Tierney (40% of 45: the words in the flattened sentence equivalent) and 12 years for Conan Doyle (40% of 30).
His manner was not effusive.[5 words/1 word with more than two syllables]
He was pacing the room swiftly, eagerly, with his head sunk upon his chest and his hands clasped behind him. [20/1]
"How do I know that you have been getting yourself very wet lately, and that you have a most clumsy and careless servant girl?” [25/0]