Complex sentence: A third major reference is the oft-quoted catchphrase: "Elementary, my dear Watson", which is never actually uttered by Holmes in any of the sixty Holmes stories written by Conan Doyle.
Split into simpler sentences: A third major reference is the oft-quoted but non-canonical catchphrase: "Elementary, my dear Watson". This phrase is never actually uttered by Holmes in any of the sixty Holmes stories written by Conan Doyle.