Parse this person name:

Guillaume Martins, 1373-1420, flourished 1398-1408
user
first_name: Guillaume
last_name: Martins
middle_names: []
temporal:
- start: 1373
  end: 1420
  type: life_span
- start: 1398
  end: 1408
  type: flourished
titles: []
extra_info: []
assistant