You will be given a definition of a task first, then some input of the task.
In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Andre Jardin (1912 1996) was a French biographer and historian, best known for his studies of Alexis de Tocqueville and 19th century French history. His 1984 biography of Tocqueville, "Alexis de Tocqueville: 1805-1859"translated into English as "Tocqueville: A Biography" in 1988 by Lydia Davis and Robert Hemenwaywas acclaimed as the definitive account of the life and career of the author of "Democracy in America". Question: Andre Jardin (1912 1996) was a French biographer and historian, best known for his studies of Alexis de Tocqueville and 19th century French history, translated into English as "Tocqueville: A Biography" in 1988 by Lydia Davis and Robert Hemenwaywas acclaimed as the definitive account of the life and career of the author of "Democracy in America"/De La Democratie en Amerique, is a classic French text by Alexis de Tocqueville, published in how many volumes? Answer: two
Output:
His 1984 biography of Tocqueville, Alexis de Tocqueville: 18051859translated into English as Tocqueville: A Biography in 1988 by Lydia Davis and Robert Hemenwaywas acclaimed as the definitive account of the life and career of the author of Democracy in America.