Parse this person name:

Graciano Hernandez, 1851-1904, flourished 1869-1883
user
first_name: Graciano
last_name: Hernandez
middle_names: []
temporal:
- start: 1851
  end: 1904
  type: life_span
- start: 1869
  end: 1883
  type: flourished
titles: []
extra_info: []
assistant