Parse this person name:

Marcel Berthelot (1804-1868, flourished 1829-1852)
user
first_name: Marcel
last_name: Berthelot
middle_names: []
temporal:
- start: 1804
  end: 1868
  type: life_span
- start: 1829
  end: 1852
  type: flourished
titles: []
extra_info: []
assistant