Parse this person name:

Denis Fischer, 1463-1521, flourished 1479-1491
user
first_name: Denis
last_name: Fischer
middle_names: []
temporal:
- start: 1463
  end: 1521
  type: life_span
- start: 1479
  end: 1491
  type: flourished
titles: []
extra_info: []
assistant