Parse this person name:

Benoît Vaillant, 1830-1878, flourished 1851-1871
user
first_name: Benoît
last_name: Vaillant
middle_names: []
temporal:
- start: 1830
  end: 1878
  type: life_span
- start: 1851
  end: 1871
  type: flourished
titles: []
extra_info: []
assistant