Parse this person name:

Keith Schultz (1939-2009, flourished 1962-1976)
user
first_name: Keith
last_name: Schultz
middle_names: []
temporal:
- start: 1939
  end: 2009
  type: life_span
- start: 1962
  end: 1976
  type: flourished
titles: []
extra_info: []
assistant