Parse this person name:

Jonas Wilcken (1938-2018, flourished 1956-1981)
user
first_name: Jonas
last_name: Wilcken
middle_names: []
temporal:
- start: 1938
  end: 2018
  type: life_span
- start: 1956
  end: 1981
  type: flourished
titles: []
extra_info: []
assistant