Parse this person name:

Hélène Guérin (1837-1912, flourished 1858-1869)
user
first_name: Hélène
last_name: Guérin
middle_names: []
temporal:
- start: 1837
  end: 1912
  type: life_span
- start: 1858
  end: 1869
  type: flourished
titles: []
extra_info: []
assistant