Parse this person name:

Robert Spieß, 1950-2004, flourished 1966-1993
user
first_name: Robert
last_name: Spieß
middle_names: []
temporal:
- start: 1950
  end: 2004
  type: life_span
- start: 1966
  end: 1993
  type: flourished
titles: []
extra_info: []
assistant