Question:
Who was the head coach of the team FC Chornomorets Odesa in Apr, 2021?

Context:
 Ostap Markevych is the head coach of FC Chornomorets Odesa from Oct, 2019 to Apr, 2020. 
 Oleksiy Antonov is the head coach of FC Chornomorets Odesa from Feb, 2021 to Jun, 2021. 
 Roman Hryhorchuk is the head coach of FC Chornomorets Odesa from Dec, 2021 to Dec, 2022. 
 Angel Chervenkov is the head coach of FC Chornomorets Odesa from Jun, 2018 to Sep, 2019. 
 Serhiy Kovalets is the head coach of FC Chornomorets Odesa from May, 2020 to Feb, 2021. 
 Kostyantyn Frolov is the head coach of FC Chornomorets Odesa from Dec, 2017 to Jun, 2018. 
 Vitaliy Starovik is the head coach of FC Chornomorets Odesa from Sep, 2019 to Oct, 2019. 
 Oleg Dulub is the head coach of FC Chornomorets Odesa from Sep, 2017 to Dec, 2017.

Answer:
Question:
Who was the head coach of the team FC Chornomorets Odesa in Apr, 2021?

Context:
 Ostap Markevych is the head coach of FC Chornomorets Odesa from Oct, 2019 to Apr, 2020. 
 Oleksiy Antonov is the head coach of FC Chornomorets Odesa from Feb, 2021 to Jun, 2021. 
 Roman Hryhorchuk is the head coach of FC Chornomorets Odesa from Dec, 2021 to Dec, 2022. 
 Angel Chervenkov is the head coach of FC Chornomorets Odesa from Jun, 2018 to Sep, 2019. 
 Serhiy Kovalets is the head coach of FC Chornomorets Odesa from May, 2020 to Feb, 2021. 
 Kostyantyn Frolov is the head coach of FC Chornomorets Odesa from Dec, 2017 to Jun, 2018. 
 Vitaliy Starovik is the head coach of FC Chornomorets Odesa from Sep, 2019 to Oct, 2019. 
 Oleg Dulub is the head coach of FC Chornomorets Odesa from Sep, 2017 to Dec, 2017.

Answer:
user
Oleksiy Antonov
assistant
Question:
Who was the head coach of the team FC Chornomorets Odesa in Apr, 2021?

Context:
 Ostap Markevych is the head coach of FC Chornomorets Odesa from Oct, 2019 to Apr, 2020. 
 Oleksiy Antonov is the head coach of FC Chornomorets Odesa from Feb, 2021 to Jun, 2021. 
 Roman Hryhorchuk is the head coach of FC Chornomorets Odesa from Dec, 2021 to Dec, 2022. 
 Angel Chervenkov is the head coach of FC Chornomorets Odesa from Jun, 2018 to Sep, 2019. 
 Serhiy Kovalets is the head coach of FC Chornomorets Odesa from May, 2020 to Feb, 2021. 
 Kostyantyn Frolov is the head coach of FC Chornomorets Odesa from Dec, 2017 to Jun, 2018. 
 Vitaliy Starovik is the head coach of FC Chornomorets Odesa from Sep, 2019 to Oct, 2019. 
 Oleg Dulub is the head coach of FC Chornomorets Odesa from Sep, 2017 to Dec, 2017.

Answer:
user
Ostap Markevych
Kostyantyn Frolov
Oleg Dulub
Serhiy Kovalets
Angel Chervenkov
Roman Hryhorchuk
Vitaliy Starovik
assistant
Question:
Who was the head coach of the team FC Chornomorets Odesa in Apr, 2021?

Context:
 Ostap Markevych is the head coach of FC Chornomorets Odesa from Oct, 2019 to Apr, 2020. 
 Oleksiy Antonov is the head coach of FC Chornomorets Odesa from Feb, 2021 to Jun, 2021. 
 Roman Hryhorchuk is the head coach of FC Chornomorets Odesa from Dec, 2021 to Dec, 2022. 
 Angel Chervenkov is the head coach of FC Chornomorets Odesa from Jun, 2018 to Sep, 2019. 
 Serhiy Kovalets is the head coach of FC Chornomorets Odesa from May, 2020 to Feb, 2021. 
 Kostyantyn Frolov is the head coach of FC Chornomorets Odesa from Dec, 2017 to Jun, 2018. 
 Vitaliy Starovik is the head coach of FC Chornomorets Odesa from Sep, 2019 to Oct, 2019. 
 Oleg Dulub is the head coach of FC Chornomorets Odesa from Sep, 2017 to Dec, 2017.

Answer:
user
Oleksiy Antonov
assistant