Parse this person name:

Shelby Allen (1234-1304, flourished 1259-1283)
user
first_name: Shelby
last_name: Allen
middle_names: []
temporal:
- start: 1234
  end: 1304
  type: life_span
- start: 1259
  end: 1283
  type: flourished
titles: []
extra_info: []
assistant