Parse this person name:

Elena Nitti (1255-1311, flourished 1284-1306)
user
first_name: Elena
last_name: Nitti
middle_names: []
temporal:
- start: 1255
  end: 1311
  type: life_span
- start: 1284
  end: 1306
  type: flourished
titles: []
extra_info: []
assistant