Parse this person name:

Fem Kolster (1933-1988, flourished 1950-1979)
user
first_name: Fem
last_name: Kolster
middle_names: []
temporal:
- start: 1933
  end: 1988
  type: life_span
- start: 1950
  end: 1979
  type: flourished
titles: []
extra_info: []
assistant