Parse this person name:

Alla Beckmann, 1317-1385, flourished 1335-1349
user
first_name: Alla
last_name: Beckmann
middle_names: []
temporal:
- start: 1317
  end: 1385
  type: life_span
- start: 1335
  end: 1349
  type: flourished
titles: []
extra_info: []
assistant