Input: Read this: In recent years, the School has put on a musical version of The Bacchae (October 2009) as well as productions of A Funny Thing Happened on the Way to the Forum (May 2010), The Cherry Orchard (February 2011), Joseph K (October 2011), Cyrano de Bergerac (May 2012), Macbeth (October 2012), London Assurance (May 2013) and Jerusalem (October 2013). Upcoming in May 2014 was a production of A Midsummer Night's Dream . Often girls from surrounding schools, such as St George's, Ascot, St Mary's School Ascot, Windsor Girls' School and Heathfield St Mary's School, are cast in female roles. Boys from the School are also responsible for the lighting, sound and stage management of all the productions, under the guidance of several professional full-time theatre staff.
Question: What Eton production did the girls from Heathfield St Mary's School recently appear in?

Output: unanswerable

Input: Read this: During his tour on the guided missile frigate USS Gridley, Kerry requested duty in South Vietnam, listing as his first preference a position as the commander of a Fast Patrol Craft (PCF), also known as a "Swift boat." These 50-foot (15 m) boats have aluminum hulls and have little or no armor, but are heavily armed and rely on speed. "I didn't really want to get involved in the war", Kerry said in a book of Vietnam reminiscences published in 1986. "When I signed up for the swift boats, they had very little to do with the war. They were engaged in coastal patrolling and that's what I thought I was going to be doing." However, his second choice of billet was on a river patrol boat, or "PBR", which at the time was serving a more dangerous duty on the rivers of Vietnam.
Question: How long were swift boats?

Output: 50-foot

Input: Read this: Bell began a series of public demonstrations and lectures to introduce the new invention to the scientific community as well as the general public. A short time later, his demonstration of an early telephone prototype at the 1876 Centennial Exposition in Philadelphia brought the telephone to international attention. Influential visitors to the exhibition included Emperor Pedro II of Brazil. Later Bell had the opportunity to demonstrate the invention personally to Sir William Thomson (later, Lord Kelvin), a renowned Scottish scientist, as well as to Queen Victoria, who had requested a private audience at Osborne House, her Isle of Wight home. She called the demonstration "most extraordinary". The enthusiasm surrounding Bell's public displays laid the groundwork for universal acceptance of the revolutionary device.
Question: In what city was the 1876 Centennial Exposition?

Output: Philadelphia

Input: Read this: According to Taraborrelli, the defining moment of Madonna's childhood was the tragic and untimely death of her beloved mother. Psychiatrist Keith Ablow suggests her mother's death would have had an immeasurable impact on the young Madonna at a time when her personality was still forming. According to Ablow, the younger a child is at the time of a serious loss, the more profound the influence and the longer lasting the impact. He concludes that "some people never reconcile themselves to such a loss at an early age, Madonna is not different than them." Conversely, author Lucy O'Brien feels the impact of the rape she suffered is, in fact, the motivating factor behind everything Madonna has done, more important even than the death of her mother: "It's not so much grief at her mother's death that drives her, as the sense of abandonment that left her unprotected. She encountered her own worst possible scenario, becoming a victim of male violence, and thereafter turned that full-tilt into her work, reversing the equation at every opportunity."
Question: Who believes that the rape Madonna experienced is the driving force in life?

Output:
Lucy O'Brien