Parse this person name:

Raik Ritter, 1649-1691, flourished 1673-1686
user
first_name: Raik
last_name: Ritter
middle_names: []
temporal:
- start: 1649
  end: 1691
  type: life_span
- start: 1673
  end: 1686
  type: flourished
titles: []
extra_info: []
assistant