Parse this person name:

Cas Lether (1849-1913, flourished 1871-1900)
user
first_name: Cas
last_name: Lether
middle_names: []
temporal:
- start: 1849
  end: 1913
  type: life_span
- start: 1871
  end: 1900
  type: flourished
titles: []
extra_info: []
assistant