Parse this person name:

Bertrand Bertrand, 1702-1765, flourished 1727-1752
user
first_name: Bertrand
last_name: Bertrand
middle_names: []
temporal:
- start: 1702
  end: 1765
  type: life_span
- start: 1727
  end: 1752
  type: flourished
titles: []
extra_info: []
assistant