Parse this person name:

Hélène Legrand-Cohen (1625-1703, flourished 1642-1665)
user
first_name: Hélène
last_name: Legrand-Cohen
middle_names: []
temporal:
- start: 1625
  end: 1703
  type: life_span
- start: 1642
  end: 1665
  type: flourished
titles: []
extra_info: []
assistant