Parse this person name:

Kläre Krein (1200-1253, flourished 1221-1240)
user
first_name: Kläre
last_name: Krein
middle_names: []
temporal:
- start: 1200
  end: 1253
  type: life_span
- start: 1221
  end: 1240
  type: flourished
titles: []
extra_info: []
assistant