Parse this person name:

Roland Nguyen (1937-2004, flourished 1959-1989)
user
first_name: Roland
last_name: Nguyen
middle_names: []
temporal:
- start: 1937
  end: 2004
  type: life_span
- start: 1959
  end: 1989
  type: flourished
titles: []
extra_info: []
assistant