Parse this person name:

Hans-Dieter Seifert (1848-1921, flourished 1867-1891)
user
first_name: Hans-Dieter
last_name: Seifert
middle_names: []
temporal:
- start: 1848
  end: 1921
  type: life_span
- start: 1867
  end: 1891
  type: flourished
titles: []
extra_info: []
assistant