Parse this person name:

Ella Margraf (1287-1328, flourished 1313-1323)
user
first_name: Ella
last_name: Margraf
middle_names: []
temporal:
- start: 1287
  end: 1328
  type: life_span
- start: 1313
  end: 1323
  type: flourished
titles: []
extra_info: []
assistant