Parse this person name:

Anthony Swanson, 1426-1474, flourished 1451-1468
user
first_name: Anthony
last_name: Swanson
middle_names: []
temporal:
- start: 1426
  end: 1474
  type: life_span
- start: 1451
  end: 1468
  type: flourished
titles: []
extra_info: []
assistant