Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Example Input: Context: The Sakya see was ruled in this period by Zangpo Pal (1306-1323); one of his many sons, Kunga Lotro Gyaltsen, succeeded Sanggye Pal at his demise in 1314. 
 Question: Which replaced the Sanggye Pal?
Example Output: kunga lotro gyaltsen

Example Input: Context: The median age in the city was 35.1 years. 24.2% of residents were under the age of 18; 7.9% were between the ages of 18 and 24; 33.8% were from 25 to 44; 24.6% were from 45 to 64; and 9.5% were 65 years of age or older. The gender makeup of the city was 48.6% male and 51.4% females. 
 Question: Which age group is larger: under the age of 18 or 18 and 24?
Example Output: under the age of 18

Example Input: Context: Yoann de Boer (born 27 January 1982) is a French professional footballer who plays as a defensive midfielder for Kozakken Boys in the Dutch Topklasse. 
 Question: What role does Yoann de Boer play in football?
Example Output:
midfielder