Question:
Who was the head of Saint Petersburg in Jun, 2004?

Context:
 Alexander Beglov is the head of the government of Saint Petersburg from Jan, 2018 to Dec, 2022. 
 Georgy Poltavchenko is the head of the government of Saint Petersburg from Jan, 2011 to Jan, 2018. 
 Vladimir Anatolyevich Yakovlev is the head of the government of Saint Petersburg from Jan, 1996 to Jan, 2003. 
 Valentina Matviyenko is the head of the government of Saint Petersburg from Jan, 2003 to Jan, 2011. 
 Anatoly Sobchak is the head of the government of Saint Petersburg from Jan, 1991 to Jan, 1996.

Answer:
Question:
Who was the head of Saint Petersburg in Jun, 2004?

Context:
 Alexander Beglov is the head of the government of Saint Petersburg from Jan, 2018 to Dec, 2022. 
 Georgy Poltavchenko is the head of the government of Saint Petersburg from Jan, 2011 to Jan, 2018. 
 Vladimir Anatolyevich Yakovlev is the head of the government of Saint Petersburg from Jan, 1996 to Jan, 2003. 
 Valentina Matviyenko is the head of the government of Saint Petersburg from Jan, 2003 to Jan, 2011. 
 Anatoly Sobchak is the head of the government of Saint Petersburg from Jan, 1991 to Jan, 1996.

Answer:
user
Valentina Matviyenko
assistant
Question:
Who was the head of Saint Petersburg in Jun, 2004?

Context:
 Alexander Beglov is the head of the government of Saint Petersburg from Jan, 2018 to Dec, 2022. 
 Georgy Poltavchenko is the head of the government of Saint Petersburg from Jan, 2011 to Jan, 2018. 
 Vladimir Anatolyevich Yakovlev is the head of the government of Saint Petersburg from Jan, 1996 to Jan, 2003. 
 Valentina Matviyenko is the head of the government of Saint Petersburg from Jan, 2003 to Jan, 2011. 
 Anatoly Sobchak is the head of the government of Saint Petersburg from Jan, 1991 to Jan, 1996.

Answer:
user
Vladimir Anatolyevich Yakovlev
Georgy Poltavchenko
Alexander Beglov
Anatoly Sobchak
assistant
Question:
Who was the head of Saint Petersburg in Jun, 2004?

Context:
 Alexander Beglov is the head of the government of Saint Petersburg from Jan, 2018 to Dec, 2022. 
 Georgy Poltavchenko is the head of the government of Saint Petersburg from Jan, 2011 to Jan, 2018. 
 Vladimir Anatolyevich Yakovlev is the head of the government of Saint Petersburg from Jan, 1996 to Jan, 2003. 
 Valentina Matviyenko is the head of the government of Saint Petersburg from Jan, 2003 to Jan, 2011. 
 Anatoly Sobchak is the head of the government of Saint Petersburg from Jan, 1991 to Jan, 1996.

Answer:
user
Valentina Matviyenko
assistant