Parse this person name:

Geraci-Gentilini, Erika K. Eugenia Serena U.., Saracena (1266-1298)
user
first_name: Erika
last_name: Geraci-Gentilini
middle_names:
- K.
- Eugenia
- Serena
- U.
temporal:
- start: 1266
  end: 1298
  type: life_span
titles: []
extra_info:
- Saracena
assistant