Parse this person name:

Berto Tomás (1409-1462, flourished 1426-1440)
user
first_name: Berto
last_name: Tomás
middle_names: []
temporal:
- start: 1409
  end: 1462
  type: life_span
- start: 1426
  end: 1440
  type: flourished
titles: []
extra_info: []
assistant