Parse this person name:

Darren Bartlett, 1421-1477, flourished 1437-1447
user
first_name: Darren
last_name: Bartlett
middle_names: []
temporal:
- start: 1421
  end: 1477
  type: life_span
- start: 1437
  end: 1447
  type: flourished
titles: []
extra_info: []
assistant