Parse this person name:

René Coste, 1809-1877, flourished 1827-1847
user
first_name: René
last_name: Coste
middle_names: []
temporal:
- start: 1809
  end: 1877
  type: life_span
- start: 1827
  end: 1847
  type: flourished
titles: []
extra_info: []
assistant