Parse this person name:

Grégoire Marchand, 1832-1892, flourished 1860-1876
user
first_name: Grégoire
last_name: Marchand
middle_names: []
temporal:
- start: 1832
  end: 1892
  type: life_span
- start: 1860
  end: 1876
  type: flourished
titles: []
extra_info: []
assistant