Please answer the following question: Boston is a novel by Upton Sinclair. It is a documentary novel that combines the facts of the case with journalistic depictions of actual participants and fictional characters and events. Sinclair indicted the American system of justice by setting his characters in the context of the prosecution and execution of Sacco and Vanzetti. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Written Work