Parse this person name:

Rayan Lether (1289-1357, flourished 1316-1339)
user
first_name: Rayan
last_name: Lether
middle_names: []
temporal:
- start: 1289
  end: 1357
  type: life_span
- start: 1316
  end: 1339
  type: flourished
titles: []
extra_info: []
assistant