Parse this person name:

Günter Förster (1439-1507, flourished 1458-1468)
user
first_name: Günter
last_name: Förster
middle_names: []
temporal:
- start: 1439
  end: 1507
  type: life_span
- start: 1458
  end: 1468
  type: flourished
titles: []
extra_info: []
assistant