Parse this person name:

Santos Alcaraz, 1251-1328, flourished 1269-1293
user
first_name: Santos
last_name: Alcaraz
middle_names: []
temporal:
- start: 1251
  end: 1328
  type: life_span
- start: 1269
  end: 1293
  type: flourished
titles: []
extra_info: []
assistant