Parse this person name:

Bernad Aragonés, Cornelio Eladio R., 1217-1248
user
first_name: Cornelio
last_name: Bernad Aragonés
middle_names:
- Eladio
- R.
temporal:
- start: 1217
  end: 1248
  type: life_span
titles: []
extra_info: []
assistant