Parse this person name:

David Smith, 1446-1496, flourished 1473-1491
user
first_name: David
last_name: Smith
middle_names: []
temporal:
- start: 1446
  end: 1496
  type: life_span
- start: 1473
  end: 1491
  type: flourished
titles: []
extra_info: []
assistant