Parse this person name:

Sydney Hernandez, 1240-1319, flourished 1261-1286
user
first_name: Sydney
last_name: Hernandez
middle_names: []
temporal:
- start: 1240
  end: 1319
  type: life_span
- start: 1261
  end: 1286
  type: flourished
titles: []
extra_info: []
assistant