Parse this person name:

Douglas Klein, 1406-1472, flourished 1425-1445
user
first_name: Douglas
last_name: Klein
middle_names: []
temporal:
- start: 1406
  end: 1472
  type: life_span
- start: 1425
  end: 1445
  type: flourished
titles: []
extra_info: []
assistant