Parse this person name:

Uli Käster, 1891-1970, flourished 1909-1934
user
first_name: Uli
last_name: Käster
middle_names: []
temporal:
- start: 1891
  end: 1970
  type: life_span
- start: 1909
  end: 1934
  type: flourished
titles: []
extra_info: []
assistant