Parse this person name:

Claas Nerger (1523-1581, flourished 1548-1564)
user
first_name: Claas
last_name: Nerger
middle_names: []
temporal:
- start: 1523
  end: 1581
  type: life_span
- start: 1548
  end: 1564
  type: flourished
titles: []
extra_info: []
assistant