Parse this person name:

Christophe Bertrand, 1939-1993, flourished 1956-1984
user
first_name: Christophe
last_name: Bertrand
middle_names: []
temporal:
- start: 1939
  end: 1993
  type: life_span
- start: 1956
  end: 1984
  type: flourished
titles: []
extra_info: []
assistant