Parse this person name:

Sepp Eelman (1248-1326, flourished 1264-1284)
user
first_name: Sepp
last_name: Eelman
middle_names: []
temporal:
- start: 1248
  end: 1326
  type: life_span
- start: 1264
  end: 1284
  type: flourished
titles: []
extra_info: []
assistant