Parse this person name:

Raf Timmerman (1825-1897, flourished 1843-1870)
user
first_name: Raf
last_name: Timmerman
middle_names: []
temporal:
- start: 1825
  end: 1897
  type: life_span
- start: 1843
  end: 1870
  type: flourished
titles: []
extra_info: []
assistant