Parse this person name:

Donald Thomas (1405-1460, flourished 1427-1453)
user
first_name: Donald
last_name: Thomas
middle_names: []
temporal:
- start: 1405
  end: 1460
  type: life_span
- start: 1427
  end: 1453
  type: flourished
titles: []
extra_info: []
assistant