Parse this person name:

Thekla Ullmann (1240-1291, flourished 1267-1278)
user
first_name: Thekla
last_name: Ullmann
middle_names: []
temporal:
- start: 1240
  end: 1291
  type: life_span
- start: 1267
  end: 1278
  type: flourished
titles: []
extra_info: []
assistant