Parse this person name:

Gunther Bender, 1245-1289, flourished 1269-1284
user
first_name: Gunther
last_name: Bender
middle_names: []
temporal:
- start: 1245
  end: 1289
  type: life_span
- start: 1269
  end: 1284
  type: flourished
titles: []
extra_info: []
assistant