Parse this person name:

Sarah Walker (1525-1581, flourished 1553-1569)
user
first_name: Sarah
last_name: Walker
middle_names: []
temporal:
- start: 1525
  end: 1581
  type: life_span
- start: 1553
  end: 1569
  type: flourished
titles: []
extra_info: []
assistant