Parse this person name:

Brian Diesbergen (1922-1981, flourished 1951-1973)
user
first_name: Brian
last_name: Diesbergen
middle_names: []
temporal:
- start: 1922
  end: 1981
  type: life_span
- start: 1951
  end: 1973
  type: flourished
titles: []
extra_info: []
assistant