Parse this person name:

Sans Bernad, Berta Felicidad W. Victoria Maribel, 1890-1916
user
first_name: Berta
last_name: Sans Bernad
middle_names:
- Felicidad
- W.
- Victoria
- Maribel
temporal:
- start: 1890
  end: 1916
  type: life_span
titles: []
extra_info: []
assistant