Parse this person name:

Sandra Boucsein (1451-1527, flourished 1470-1492)
user
first_name: Sandra
last_name: Boucsein
middle_names: []
temporal:
- start: 1451
  end: 1527
  type: life_span
- start: 1470
  end: 1492
  type: flourished
titles: []
extra_info: []
assistant