Parse this person name:

Peñas Bermudez, Berta P. G., 1400-1473
user
first_name: Berta
last_name: Peñas Bermudez
middle_names:
- P.
- G.
temporal:
- start: 1400
  end: 1473
  type: life_span
titles: []
extra_info: []
assistant