Teacher: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Teacher: Now, understand the problem? If you are still confused, see the following example:
North Willingham is a village and civil parish in the West Lindsey district of Lincolnshire, England. The population of the civil parish (including Sixhills) was 181 at the 2011 census. It is situated 3.5 mi east from the town of Market Rasen on the A631 road between Market Rasen and Louth. Question: Which had a bigger population at the 2011 census, North Willingham or Market Rasen? Answer: Market Rasen
Solution: Fact_1: North Willingham is a village and civil parish in the West Lindsey district of Lincolnshire, England. Fact_2: The population of the civil parish including Sixhills was 181 at the 2011 census.
Reason: Here, we can see that both generated facts are helpful in answering question.

Now, solve this instance: Roman Grill (born March 1, 1966) is a German former footballer who is now a player agent. A defender, Grill spent eleven years playing for Bayern Munich's reserve team, and made one first-team appearance, replacing Thomas Helmer in a UEFA Cup match against Benfica in December 1995. Bayern went on to win the competition that season. After retiring, Grill worked as a coach with Bayern's youth team, before starting his own player agency in 2006. His clients include Owen Hargreaves, Philipp Lahm and Piotr Trochowski. Question: Who is the German professional footballer who is the client of Roman Grill? Answer: Piotr Trochowski
Student:
His clients include Owen Hargreaves, Philipp Lahm and Piotr Trochowski.