Parse this person name:

Tanja Seifert (1215-1279, flourished 1232-1256)
user
first_name: Tanja
last_name: Seifert
middle_names: []
temporal:
- start: 1215
  end: 1279
  type: life_span
- start: 1232
  end: 1256
  type: flourished
titles: []
extra_info: []
assistant