Parse this person name:

Inken Krein (1918-1963, flourished 1937-1952)
user
first_name: Inken
last_name: Krein
middle_names: []
temporal:
- start: 1918
  end: 1963
  type: life_span
- start: 1937
  end: 1952
  type: flourished
titles: []
extra_info: []
assistant