Question:
Who was the head coach of the team FC Zenit Saint Petersburg in Jul, 2017?

Context:
 Roberto Mancini is the head coach of FC Zenit Saint Petersburg from Jul, 2017 to May, 2018. 
 Sergei Semak is the head coach of FC Zenit Saint Petersburg from May, 2018 to Dec, 2022. 
 Luciano Spalletti is the head coach of FC Zenit Saint Petersburg from Dec, 2009 to Mar, 2014.

Answer:
Question:
Who was the head coach of the team FC Zenit Saint Petersburg in Jul, 2017?

Context:
 Roberto Mancini is the head coach of FC Zenit Saint Petersburg from Jul, 2017 to May, 2018. 
 Sergei Semak is the head coach of FC Zenit Saint Petersburg from May, 2018 to Dec, 2022. 
 Luciano Spalletti is the head coach of FC Zenit Saint Petersburg from Dec, 2009 to Mar, 2014.

Answer:
user
Roberto Mancini
assistant
Question:
Who was the head coach of the team FC Zenit Saint Petersburg in Jul, 2017?

Context:
 Roberto Mancini is the head coach of FC Zenit Saint Petersburg from Jul, 2017 to May, 2018. 
 Sergei Semak is the head coach of FC Zenit Saint Petersburg from May, 2018 to Dec, 2022. 
 Luciano Spalletti is the head coach of FC Zenit Saint Petersburg from Dec, 2009 to Mar, 2014.

Answer:
user
Luciano Spalletti
Sergei Semak
assistant
Question:
Who was the head coach of the team FC Zenit Saint Petersburg in Jul, 2017?

Context:
 Roberto Mancini is the head coach of FC Zenit Saint Petersburg from Jul, 2017 to May, 2018. 
 Sergei Semak is the head coach of FC Zenit Saint Petersburg from May, 2018 to Dec, 2022. 
 Luciano Spalletti is the head coach of FC Zenit Saint Petersburg from Dec, 2009 to Mar, 2014.

Answer:
user
Roberto Mancini
assistant