Parse this person name:

Dorothée Gérard, 1798-1857, flourished 1828-1852
user
first_name: Dorothée
last_name: Gérard
middle_names: []
temporal:
- start: 1798
  end: 1857
  type: life_span
- start: 1828
  end: 1852
  type: flourished
titles: []
extra_info: []
assistant