Parse this person name:

Anke Sontag (1229-1305, flourished 1259-1275)
user
first_name: Anke
last_name: Sontag
middle_names: []
temporal:
- start: 1229
  end: 1305
  type: life_span
- start: 1259
  end: 1275
  type: flourished
titles: []
extra_info: []
assistant