Parse this person name:

Shannon Barnes (1404-1446, flourished 1421-1441)
user
first_name: Shannon
last_name: Barnes
middle_names: []
temporal:
- start: 1404
  end: 1446
  type: life_span
- start: 1421
  end: 1441
  type: flourished
titles: []
extra_info: []
assistant