Parse this person name:

Stephen Martin (1242-1304, flourished 1261-1285)
user
first_name: Stephen
last_name: Martin
middle_names: []
temporal:
- start: 1242
  end: 1304
  type: life_span
- start: 1261
  end: 1285
  type: flourished
titles: []
extra_info: []
assistant