Parse this person name:

Cosimo Beier, 1425-1493, flourished 1454-1473
user
first_name: Cosimo
last_name: Beier
middle_names: []
temporal:
- start: 1425
  end: 1493
  type: life_span
- start: 1454
  end: 1473
  type: flourished
titles: []
extra_info: []
assistant