This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Input: Consider Input: Passage: Old English was not static, and its usage covered a period of 700 years, from the Anglo-Saxon settlement of Britain in the 5th century to the late 11th century, some time after the Norman invasion. While indicating that the establishment of dates is an arbitrary process, Albert Baugh dates Old English from 450 to 1150, a period of full inflections, a synthetic language. Perhaps around 85 per cent of Old English words are no longer in use, but those that survived, to be sure, are basic elements of Modern English vocabulary. Question: In what century did Old English cease to be used?

Output: 11th


Input: Consider Input: Passage: At the age of 10, West moved with his mother to Nanjing, China, where she was teaching at Nanjing University as part of an exchange program. According to his mother, West was the only foreigner in his class, but settled in well and quickly picked up the language, although he has since forgotten most of it. When asked about his grades in high school, West replied, "I got A's and B's. And I'm not even frontin'." Question: What University was the cause of West's mother moving the family to China?

Output: Nanjing University


Input: Consider Input: Passage: In the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as John Constable and Jean-Baptiste-Camille Corot depicted the lush green of rural landscapes and forests. Green was contrasted to the smoky grays and blacks of the Industrial Revolution. Question: When was green associated with the romantic movement in literature and art?


Output: 18th and 19th century