Parse this person name:

Thoralf Holsten (1841-1919, flourished 1862-1877)
user
first_name: Thoralf
last_name: Holsten
middle_names: []
temporal:
- start: 1841
  end: 1919
  type: life_span
- start: 1862
  end: 1877
  type: flourished
titles: []
extra_info: []
assistant