Parse this person name:

Elena Walter, 1507-1578, flourished 1532-1554
user
first_name: Elena
last_name: Walter
middle_names: []
temporal:
- start: 1507
  end: 1578
  type: life_span
- start: 1532
  end: 1554
  type: flourished
titles: []
extra_info: []
assistant