Parse this person name:

Sebastian Jungfer (1882-1926, flourished 1904-1921)
user
first_name: Sebastian
last_name: Jungfer
middle_names: []
temporal:
- start: 1882
  end: 1926
  type: life_span
- start: 1904
  end: 1921
  type: flourished
titles: []
extra_info: []
assistant