Question:
Who was the head coach of the team Bingoal WB in May, 2011?

Context:
 Frédéric Amorison is the head coach of Bingoal WB from Jan, 2015 to Dec, 2022. 
 Olivier Kaisen is the head coach of Bingoal WB from Jan, 2016 to Dec, 2022. 
 Thierry Marichal is the head coach of Bingoal WB from Jan, 2017 to Jan, 2019. 
 Alexandre Abel is the head coach of Bingoal WB from May, 2014 to Dec, 2016. 
 François Oger is the head coach of Bingoal WB from Jan, 2013 to Jan, 2014. 
 Michel Dernies is the head coach of Bingoal WB from Jan, 2011 to Jan, 2014. 
 Christophe Vanassche is the head coach of Bingoal WB from Jan, 2011 to Jan, 2012.

Answer:
Question:
Who was the head coach of the team Bingoal WB in May, 2011?

Context:
 Frédéric Amorison is the head coach of Bingoal WB from Jan, 2015 to Dec, 2022. 
 Olivier Kaisen is the head coach of Bingoal WB from Jan, 2016 to Dec, 2022. 
 Thierry Marichal is the head coach of Bingoal WB from Jan, 2017 to Jan, 2019. 
 Alexandre Abel is the head coach of Bingoal WB from May, 2014 to Dec, 2016. 
 François Oger is the head coach of Bingoal WB from Jan, 2013 to Jan, 2014. 
 Michel Dernies is the head coach of Bingoal WB from Jan, 2011 to Jan, 2014. 
 Christophe Vanassche is the head coach of Bingoal WB from Jan, 2011 to Jan, 2012.

Answer:
user
Michel Dernies
assistant
Question:
Who was the head coach of the team Bingoal WB in May, 2011?

Context:
 Frédéric Amorison is the head coach of Bingoal WB from Jan, 2015 to Dec, 2022. 
 Olivier Kaisen is the head coach of Bingoal WB from Jan, 2016 to Dec, 2022. 
 Thierry Marichal is the head coach of Bingoal WB from Jan, 2017 to Jan, 2019. 
 Alexandre Abel is the head coach of Bingoal WB from May, 2014 to Dec, 2016. 
 François Oger is the head coach of Bingoal WB from Jan, 2013 to Jan, 2014. 
 Michel Dernies is the head coach of Bingoal WB from Jan, 2011 to Jan, 2014. 
 Christophe Vanassche is the head coach of Bingoal WB from Jan, 2011 to Jan, 2012.

Answer:
user
Thierry Marichal
Alexandre Abel
Olivier Kaisen
Frédéric Amorison
François Oger
assistant
Question:
Who was the head coach of the team Bingoal WB in May, 2011?

Context:
 Frédéric Amorison is the head coach of Bingoal WB from Jan, 2015 to Dec, 2022. 
 Olivier Kaisen is the head coach of Bingoal WB from Jan, 2016 to Dec, 2022. 
 Thierry Marichal is the head coach of Bingoal WB from Jan, 2017 to Jan, 2019. 
 Alexandre Abel is the head coach of Bingoal WB from May, 2014 to Dec, 2016. 
 François Oger is the head coach of Bingoal WB from Jan, 2013 to Jan, 2014. 
 Michel Dernies is the head coach of Bingoal WB from Jan, 2011 to Jan, 2014. 
 Christophe Vanassche is the head coach of Bingoal WB from Jan, 2011 to Jan, 2012.

Answer:
user
Michel Dernies
assistant