Parse this person name:

René Chevalier-Berthelot, 1215-1259, flourished 1239-1254
user
first_name: René
last_name: Chevalier-Berthelot
middle_names: []
temporal:
- start: 1215
  end: 1259
  type: life_span
- start: 1239
  end: 1254
  type: flourished
titles: []
extra_info: []
assistant