Definition: 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.
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?
Output:
midfielder