Parse this person name:

Gras Arco, Cosme U. Octavia C., 1453-1511
user
first_name: Cosme
last_name: Gras Arco
middle_names:
- U.
- Octavia
- C.
temporal:
- start: 1453
  end: 1511
  type: life_span
titles: []
extra_info: []
assistant