Parse this person name:

Polina Liebelt, 1267-1317, flourished 1284-1305
user
first_name: Polina
last_name: Liebelt
middle_names: []
temporal:
- start: 1267
  end: 1317
  type: life_span
- start: 1284
  end: 1305
  type: flourished
titles: []
extra_info: []
assistant