Parse this person name:

Narciso Casanovas, 1226-1284, flourished 1252-1278
user
first_name: Narciso
last_name: Casanovas
middle_names: []
temporal:
- start: 1226
  end: 1284
  type: life_span
- start: 1252
  end: 1278
  type: flourished
titles: []
extra_info: []
assistant