Parse this person name:

Sylke Sontag (1885-1951, flourished 1913-1929)
user
first_name: Sylke
last_name: Sontag
middle_names: []
temporal:
- start: 1885
  end: 1951
  type: life_span
- start: 1913
  end: 1929
  type: flourished
titles: []
extra_info: []
assistant