Question:
Who was the head coach of the team PFC CSKA Moscow in Apr, 2021?

Context:
 Leonid Slutsky is the head coach of PFC CSKA Moscow from Oct, 2009 to Dec, 2016. 
 Vladimir Valentinovich Fedotov is the head coach of PFC CSKA Moscow from Jun, 2022 to Dec, 2022. 
 Viktor Goncharenko is the head coach of PFC CSKA Moscow from Dec, 2016 to Mar, 2021. 
 Ivica Olić is the head coach of PFC CSKA Moscow from Mar, 2021 to Jun, 2021. 
 Aleksei Berezutski is the head coach of PFC CSKA Moscow from Jun, 2021 to Jun, 2022.

Answer:
Question:
Who was the head coach of the team PFC CSKA Moscow in Apr, 2021?

Context:
 Leonid Slutsky is the head coach of PFC CSKA Moscow from Oct, 2009 to Dec, 2016. 
 Vladimir Valentinovich Fedotov is the head coach of PFC CSKA Moscow from Jun, 2022 to Dec, 2022. 
 Viktor Goncharenko is the head coach of PFC CSKA Moscow from Dec, 2016 to Mar, 2021. 
 Ivica Olić is the head coach of PFC CSKA Moscow from Mar, 2021 to Jun, 2021. 
 Aleksei Berezutski is the head coach of PFC CSKA Moscow from Jun, 2021 to Jun, 2022.

Answer:
user
Ivica Olić
assistant
Question:
Who was the head coach of the team PFC CSKA Moscow in Apr, 2021?

Context:
 Leonid Slutsky is the head coach of PFC CSKA Moscow from Oct, 2009 to Dec, 2016. 
 Vladimir Valentinovich Fedotov is the head coach of PFC CSKA Moscow from Jun, 2022 to Dec, 2022. 
 Viktor Goncharenko is the head coach of PFC CSKA Moscow from Dec, 2016 to Mar, 2021. 
 Ivica Olić is the head coach of PFC CSKA Moscow from Mar, 2021 to Jun, 2021. 
 Aleksei Berezutski is the head coach of PFC CSKA Moscow from Jun, 2021 to Jun, 2022.

Answer:
user
Leonid Slutsky
Vladimir Valentinovich Fedotov
Viktor Goncharenko
Aleksei Berezutski
assistant
Question:
Who was the head coach of the team PFC CSKA Moscow in Apr, 2021?

Context:
 Leonid Slutsky is the head coach of PFC CSKA Moscow from Oct, 2009 to Dec, 2016. 
 Vladimir Valentinovich Fedotov is the head coach of PFC CSKA Moscow from Jun, 2022 to Dec, 2022. 
 Viktor Goncharenko is the head coach of PFC CSKA Moscow from Dec, 2016 to Mar, 2021. 
 Ivica Olić is the head coach of PFC CSKA Moscow from Mar, 2021 to Jun, 2021. 
 Aleksei Berezutski is the head coach of PFC CSKA Moscow from Jun, 2021 to Jun, 2022.

Answer:
user
Ivica Olić
assistant