Input: Read this: The late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his painting, The Night Cafe, to his brother Theo in 1888, Van Gogh wrote: "I sought to express with red and green the terrible human passions. The hall is blood red and pale yellow, with a green billiard table in the center, and four lamps of lemon yellow, with rays of orange and green. Everywhere it is a battle and antithesis of the most different reds and greens."
Question: What year did color theory first appear?

Output: unanswerable

Input: Read this: Early humanists saw no conflict between reason and their Christian faith (see Christian Humanism). They inveighed against the abuses of the Church, but not against the Church itself, much less against religion. For them, the word "secular" carried no connotations of disbelief that would come later, in the nineteenth century. In the Renaissance to be secular meant simply to be in the world rather than in a monastery. Petrarch frequently admitted that his brother Gherardo's life as a Carthusian monk was superior to his own (although Petrarch himself was in Minor Orders and was employed by the Church all his life). He hoped that he could do some good by winning earthly glory and praising virtue, inferior though that might be to a life devoted solely to prayer. By embracing a non-theistic philosophic base, however, the methods of the humanists, combined with their eloquence, would ultimately have a corrosive effect on established authority.
Question: Petrarch felt that although he tried to do his own form of good whose life may have more meaning?

Output: Gherardo

Input: Read this: The value judgement definition of literature considers it to exclusively include writing that possesses high quality or distinction, forming part of the so-called belles-lettres ('fine writing') tradition. This is the definition used in the Encyclopdia Britannica Eleventh Edition (191011) when it classifies literature as "the best expression of the best thought reduced to writing." However, this has the result that there is no objective definition of what constitutes "literature"; anything can be literature, and anything which is universally regarded as literature has the potential to be excluded, since value-judgements can change over time.
Question: How often do value-judgments change?

Output: unanswerable

Input: Read this: Notre Dame alumni work in various fields. Alumni working in political fields include state governors, members of the United States Congress, and former United States Secretary of State Condoleezza Rice. A notable alumnus of the College of Science is Medicine Nobel Prize winner Eric F. Wieschaus. A number of university heads are alumni, including Notre Dame's current president, the Rev. John Jenkins. Additionally, many alumni are in the media, including talk show hosts Regis Philbin and Phil Donahue, and television and radio personalities such as Mike Golic and Hannah Storm. With the university having high profile sports teams itself, a number of alumni went on to become involved in athletics outside the university, including professional baseball, basketball, football, and ice hockey players, such as Joe Theismann, Joe Montana, Tim Brown, Ross Browner, Rocket Ismail, Ruth Riley, Jeff Samardzija, Jerome Bettis, Brett Lebda, Olympic gold medalist Mariel Zagunis, professional boxer Mike Lee, former football coaches such as Charlie Weis, Frank Leahy and Knute Rockne, and Basketball Hall of Famers Austin Carr and Adrian Dantley. Other notable alumni include prominent businessman Edward J. DeBartolo, Jr. and astronaut Jim Wetherbee.
Question: Who is the current president of Notre Dame?

Output:
Rev. John Jenkins