Parse this person name:

Sandy Förster (1357-1427, flourished 1387-1417)
user
first_name: Sandy
last_name: Förster
middle_names: []
temporal:
- start: 1357
  end: 1427
  type: life_span
- start: 1387
  end: 1417
  type: flourished
titles: []
extra_info: []
assistant