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.

Example Input: Passage: During the 11th and 12th centuries the Catalan rulers expanded up to north of the Ebro river, and in the 13th century they conquered the Land of Valencia and the Balearic Islands. The city of Alghero in Sardinia was repopulated with Catalan speakers in the 14th century. The language also reached Murcia, which became Spanish-speaking in the 15th century. Question: When did the Catalan rulers take over Valencia and the Balearic Islands?
Example Output: 13th century

Example Input: Passage: Yet another boom began as the city emerged from the Great Recession. Amazon.com moved its headquarters from North Beacon Hill to South Lake Union and began a rapid expansion. For the five years beginning in 2010, Seattle gained an average of 14,511 residents per year, with the growth strongly skewed toward the center of the city, as unemployment dropped from roughly 9 percent to 3.6 percent. The city has found itself "bursting at the seams," with over 45,000 households spending more than half their income on housing and at least 2,800 people homeless, and with the country's sixth-worst rush hour traffic. Question: When did Amazon begin its latest expansion?
Example Output: 2010

Example Input: Passage: In many cities along the North American and European route, the torch relay was protested by advocates of Tibetan independence, animal rights, and legal online gambling, and people protesting against China's human rights record, resulting in confrontations at a few of the relay locations. These protests, which ranged from hundreds of people in San Francisco, to effectively none in Pyongyang, forced the path of the torch relay to be changed or shortened on a number of occasions. The torch was extinguished by Chinese security officials several times during the Paris leg for security reasons, and once in protest in Paris. Question: How many people protested at the Pyongyang torch route?
Example Output:
effectively none