Parse this person name:

Franziska Seifert (1858-1921, flourished 1887-1909)
user
first_name: Franziska
last_name: Seifert
middle_names: []
temporal:
- start: 1858
  end: 1921
  type: life_span
- start: 1887
  end: 1909
  type: flourished
titles: []
extra_info: []
assistant