Parse this person name:

Martín Rivero, 1276-1352, flourished 1293-1315
user
first_name: Martín
last_name: Rivero
middle_names: []
temporal:
- start: 1276
  end: 1352
  type: life_span
- start: 1293
  end: 1315
  type: flourished
titles: []
extra_info: []
assistant