Parse this person name:

Lydia Hellwig (1815-1861, flourished 1845-1856)
user
first_name: Lydia
last_name: Hellwig
middle_names: []
temporal:
- start: 1815
  end: 1861
  type: life_span
- start: 1845
  end: 1856
  type: flourished
titles: []
extra_info: []
assistant