Parse this person name:

Dominique Legrand, 1820-1861, flourished 1839-1851
user
first_name: Dominique
last_name: Legrand
middle_names: []
temporal:
- start: 1820
  end: 1861
  type: life_span
- start: 1839
  end: 1851
  type: flourished
titles: []
extra_info: []
assistant