Parse this person name:

Anna Guerra (1820-1893, flourished 1841-1867)
user
first_name: Anna
last_name: Guerra
middle_names: []
temporal:
- start: 1820
  end: 1893
  type: life_span
- start: 1841
  end: 1867
  type: flourished
titles: []
extra_info: []
assistant