Parse this person name:

William Velez, 1825-1876, flourished 1851-1862
user
first_name: William
last_name: Velez
middle_names: []
temporal:
- start: 1825
  end: 1876
  type: life_span
- start: 1851
  end: 1862
  type: flourished
titles: []
extra_info: []
assistant