Parse this person name:

Hans-Otto Ullmann, 1451-1494, flourished 1469-1480
user
first_name: Hans-Otto
last_name: Ullmann
middle_names: []
temporal:
- start: 1451
  end: 1494
  type: life_span
- start: 1469
  end: 1480
  type: flourished
titles: []
extra_info: []
assistant