Question:
Who was the chair of West Japan Railway Company in Jan, 1989?

Context:
 Noritaka Kurauchi is the chair of West Japan Railway Company from Jan, 2006 to Jan, 2012. 
 Seiji Manabe is the chair of West Japan Railway Company from Jan, 2016 to Jun, 2021. 
 Tsutomu Murai is the chair of West Japan Railway Company from Jan, 1987 to Jan, 1992. 
 Tatsuo Tsunoda is the chair of West Japan Railway Company from Jan, 1992 to Jan, 1997. 
 Masataka Ide is the chair of West Japan Railway Company from Jan, 1997 to Jan, 2003. 
 Takayuki Sasaki is the chair of West Japan Railway Company from Jan, 2012 to Jan, 2016. 
 Shōjirō Nan'ya is the chair of West Japan Railway Company from Jan, 2003 to Jan, 2006.

Answer:
Question:
Who was the chair of West Japan Railway Company in Jan, 1989?

Context:
 Noritaka Kurauchi is the chair of West Japan Railway Company from Jan, 2006 to Jan, 2012. 
 Seiji Manabe is the chair of West Japan Railway Company from Jan, 2016 to Jun, 2021. 
 Tsutomu Murai is the chair of West Japan Railway Company from Jan, 1987 to Jan, 1992. 
 Tatsuo Tsunoda is the chair of West Japan Railway Company from Jan, 1992 to Jan, 1997. 
 Masataka Ide is the chair of West Japan Railway Company from Jan, 1997 to Jan, 2003. 
 Takayuki Sasaki is the chair of West Japan Railway Company from Jan, 2012 to Jan, 2016. 
 Shōjirō Nan'ya is the chair of West Japan Railway Company from Jan, 2003 to Jan, 2006.

Answer:
user
Tsutomu Murai
assistant
Question:
Who was the chair of West Japan Railway Company in Jan, 1989?

Context:
 Noritaka Kurauchi is the chair of West Japan Railway Company from Jan, 2006 to Jan, 2012. 
 Seiji Manabe is the chair of West Japan Railway Company from Jan, 2016 to Jun, 2021. 
 Tsutomu Murai is the chair of West Japan Railway Company from Jan, 1987 to Jan, 1992. 
 Tatsuo Tsunoda is the chair of West Japan Railway Company from Jan, 1992 to Jan, 1997. 
 Masataka Ide is the chair of West Japan Railway Company from Jan, 1997 to Jan, 2003. 
 Takayuki Sasaki is the chair of West Japan Railway Company from Jan, 2012 to Jan, 2016. 
 Shōjirō Nan'ya is the chair of West Japan Railway Company from Jan, 2003 to Jan, 2006.

Answer:
user
Noritaka Kurauchi
Shōjirō Nan'ya
Tatsuo Tsunoda
Takayuki Sasaki
Masataka Ide
Seiji Manabe
assistant
Question:
Who was the chair of West Japan Railway Company in Jan, 1989?

Context:
 Noritaka Kurauchi is the chair of West Japan Railway Company from Jan, 2006 to Jan, 2012. 
 Seiji Manabe is the chair of West Japan Railway Company from Jan, 2016 to Jun, 2021. 
 Tsutomu Murai is the chair of West Japan Railway Company from Jan, 1987 to Jan, 1992. 
 Tatsuo Tsunoda is the chair of West Japan Railway Company from Jan, 1992 to Jan, 1997. 
 Masataka Ide is the chair of West Japan Railway Company from Jan, 1997 to Jan, 2003. 
 Takayuki Sasaki is the chair of West Japan Railway Company from Jan, 2012 to Jan, 2016. 
 Shōjirō Nan'ya is the chair of West Japan Railway Company from Jan, 2003 to Jan, 2006.

Answer:
user
Tsutomu Murai
assistant