Parse this person name:

Bela Langern, 1326-1377, flourished 1346-1369
user
first_name: Bela
last_name: Langern
middle_names: []
temporal:
- start: 1326
  end: 1377
  type: life_span
- start: 1346
  end: 1369
  type: flourished
titles: []
extra_info: []
assistant