Question:
Who was the head of Fort Lauderdale in Jul, 1990?

Context:
 Dean Trantalis is the head of the government of Fort Lauderdale from Mar, 2018 to Dec, 2022. 
 Jack Seiler is the head of the government of Fort Lauderdale from Mar, 2009 to Mar, 2018. 
 Robert O. Cox is the head of the government of Fort Lauderdale from Jan, 1986 to Jan, 1991. 
 Jim Naugle is the head of the government of Fort Lauderdale from Jan, 1991 to Mar, 2009.

Answer:
Question:
Who was the head of Fort Lauderdale in Jul, 1990?

Context:
 Dean Trantalis is the head of the government of Fort Lauderdale from Mar, 2018 to Dec, 2022. 
 Jack Seiler is the head of the government of Fort Lauderdale from Mar, 2009 to Mar, 2018. 
 Robert O. Cox is the head of the government of Fort Lauderdale from Jan, 1986 to Jan, 1991. 
 Jim Naugle is the head of the government of Fort Lauderdale from Jan, 1991 to Mar, 2009.

Answer:
user
Robert O. Cox
assistant
Question:
Who was the head of Fort Lauderdale in Jul, 1990?

Context:
 Dean Trantalis is the head of the government of Fort Lauderdale from Mar, 2018 to Dec, 2022. 
 Jack Seiler is the head of the government of Fort Lauderdale from Mar, 2009 to Mar, 2018. 
 Robert O. Cox is the head of the government of Fort Lauderdale from Jan, 1986 to Jan, 1991. 
 Jim Naugle is the head of the government of Fort Lauderdale from Jan, 1991 to Mar, 2009.

Answer:
user
Jim Naugle
Jack Seiler
Dean Trantalis
assistant
Question:
Who was the head of Fort Lauderdale in Jul, 1990?

Context:
 Dean Trantalis is the head of the government of Fort Lauderdale from Mar, 2018 to Dec, 2022. 
 Jack Seiler is the head of the government of Fort Lauderdale from Mar, 2009 to Mar, 2018. 
 Robert O. Cox is the head of the government of Fort Lauderdale from Jan, 1986 to Jan, 1991. 
 Jim Naugle is the head of the government of Fort Lauderdale from Jan, 1991 to Mar, 2009.

Answer:
user
Robert O. Cox
assistant