Parse this person name:

Antonios Köster (1285-1347, flourished 1304-1331)
user
first_name: Antonios
last_name: Köster
middle_names: []
temporal:
- start: 1285
  end: 1347
  type: life_span
- start: 1304
  end: 1331
  type: flourished
titles: []
extra_info: []
assistant