Parse this person name:

Doreen Börner, 1209-1264, flourished 1231-1252
user
first_name: Doreen
last_name: Börner
middle_names: []
temporal:
- start: 1209
  end: 1264
  type: life_span
- start: 1231
  end: 1252
  type: flourished
titles: []
extra_info: []
assistant