Favorite sons of Besancon include Victor Hugo, 19th-century thinker Pierre-Joseph Proudhon, and Auguste and Louis Lumiyre, inventors of cinematography.
Victor Hugo and Pierre-Josephn Proudhon were close friends.
mnli hypothesis: Victor Hugo and Pierre-Josephn Proudhon were close friends. premise: Favorite sons of Besancon include Victor Hugo, 19th-century thinker Pierre-Joseph Proudhon, and Auguste and Louis Lumiyre, inventors of cinematography.