Parse this person name:

Apostolos Krein (1937-1991, flourished 1965-1976)
user
first_name: Apostolos
last_name: Krein
middle_names: []
temporal:
- start: 1937
  end: 1991
  type: life_span
- start: 1965
  end: 1976
  type: flourished
titles: []
extra_info: []
assistant