Parse this person name:

Volkmar Junck, 1937-1978, flourished 1954-1965
user
first_name: Volkmar
last_name: Junck
middle_names: []
temporal:
- start: 1937
  end: 1978
  type: life_span
- start: 1954
  end: 1965
  type: flourished
titles: []
extra_info: []
assistant