Parse this person name:

Stephen Adler, 1387-1447, flourished 1404-1433
user
first_name: Stephen
last_name: Adler
middle_names: []
temporal:
- start: 1387
  end: 1447
  type: life_span
- start: 1404
  end: 1433
  type: flourished
titles: []
extra_info: []
assistant