Imagine the conversation that came before this response? Response: He served as professor in the university of that city.
See the 2 person dialog:
  Person 1) What is the difference between a fire code and a building code?
  Person 2) Raoul Pictet Raoul-Pierre Pictet (4 April 1846 – 27 July 1929) was a Swiss physicist.
  Person 1) What was he credited with?
  Person 2) He was the first person to liquefy nitrogen.
  Person 1) Where was he from?
  Person 2) Pictet was born in Geneva.
  Person 1) Did he go to college?
  Person 2) 