Question:
Who was the chair of Novosibirsk State University in Jan, 1999?

Context:
 Mikhail Fedoruk is the chair of Novosibirsk State University from Jan, 2012 to Dec, 2022. 
 Spartak Belyaev is the chair of Novosibirsk State University from Jan, 1965 to Jan, 1978. 
 Ilia Vekua is the chair of Novosibirsk State University from Jan, 1959 to Jan, 1964. 
 Nikolay Dikansky is the chair of Novosibirsk State University from Jan, 1997 to Jan, 2007. 
 Valentin Koptyug is the chair of Novosibirsk State University from Jan, 1978 to Jan, 1980.

Answer:
Question:
Who was the chair of Novosibirsk State University in Jan, 1999?

Context:
 Mikhail Fedoruk is the chair of Novosibirsk State University from Jan, 2012 to Dec, 2022. 
 Spartak Belyaev is the chair of Novosibirsk State University from Jan, 1965 to Jan, 1978. 
 Ilia Vekua is the chair of Novosibirsk State University from Jan, 1959 to Jan, 1964. 
 Nikolay Dikansky is the chair of Novosibirsk State University from Jan, 1997 to Jan, 2007. 
 Valentin Koptyug is the chair of Novosibirsk State University from Jan, 1978 to Jan, 1980.

Answer:
user
Nikolay Dikansky
assistant
Question:
Who was the chair of Novosibirsk State University in Jan, 1999?

Context:
 Mikhail Fedoruk is the chair of Novosibirsk State University from Jan, 2012 to Dec, 2022. 
 Spartak Belyaev is the chair of Novosibirsk State University from Jan, 1965 to Jan, 1978. 
 Ilia Vekua is the chair of Novosibirsk State University from Jan, 1959 to Jan, 1964. 
 Nikolay Dikansky is the chair of Novosibirsk State University from Jan, 1997 to Jan, 2007. 
 Valentin Koptyug is the chair of Novosibirsk State University from Jan, 1978 to Jan, 1980.

Answer:
user
Spartak Belyaev
Valentin Koptyug
Mikhail Fedoruk
Ilia Vekua
assistant
Question:
Who was the chair of Novosibirsk State University in Jan, 1999?

Context:
 Mikhail Fedoruk is the chair of Novosibirsk State University from Jan, 2012 to Dec, 2022. 
 Spartak Belyaev is the chair of Novosibirsk State University from Jan, 1965 to Jan, 1978. 
 Ilia Vekua is the chair of Novosibirsk State University from Jan, 1959 to Jan, 1964. 
 Nikolay Dikansky is the chair of Novosibirsk State University from Jan, 1997 to Jan, 2007. 
 Valentin Koptyug is the chair of Novosibirsk State University from Jan, 1978 to Jan, 1980.

Answer:
user
Nikolay Dikansky
assistant