Parse this person name:

Antonio Sanmartín, 1857-1924, flourished 1876-1898
user
first_name: Antonio
last_name: Sanmartín
middle_names: []
temporal:
- start: 1857
  end: 1924
  type: life_span
- start: 1876
  end: 1898
  type: flourished
titles: []
extra_info: []
assistant