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.

Ex Input:
Passage: According to Sun Jiadong, the chief designer of the navigation system, "Many organizations have been using our system for a while, and they like it very much." Question: What did Sun Jiadong have to say about the BeiDou navigation system?

Ex Output:
"Many organizations have been using our system for a while, and they like it very much."


Ex Input:
Passage: Every fall the Santa Monica Chamber of Commerce hosts The Taste of Santa Monica on the Santa Monica Pier. Visitors can sample food and drinks from Santa Monica restaurants. Other annual events include the Business and Consumer Expo, Sustainable Quality Awards, Santa Monica Cares Health and Wellness Festival, and the State of the City. The swanky Shutters on the Beach Hotel offers a trip to the famous Santa Monica Farmers Market to select and influence the materials that will become that evening's special "Market Dinner." Question: Where is the Taste of Santa Monica held each year?

Ex Output:
Santa Monica Pier


Ex Input:
Passage: From 1950 to 2011, world population increased from 2.5 billion to 7 billion and is forecast to reach a plateau of more than 9 billion during the 21st century. Sir David King, former chief scientific adviser to the UK government, told a parliamentary inquiry: "It is self-evident that the massive growth in the human population through the 20th century has had more impact on biodiversity than any other single factor." At least until the middle of the 21st century, worldwide losses of pristine biodiverse land will probably depend much on the worldwide human birth rate. Question: What is the forecast plateau that the population will reach during the 21st century?

Ex Output:

more than 9 billion