Parse this person name:

Steven Watkins (1941-2009, flourished 1964-1986)
user
first_name: Steven
last_name: Watkins
middle_names: []
temporal:
- start: 1941
  end: 2009
  type: life_span
- start: 1964
  end: 1986
  type: flourished
titles: []
extra_info: []
assistant