Parse this person name:

Sandra Murray (1420-1494, flourished 1439-1459)
user
first_name: Sandra
last_name: Murray
middle_names: []
temporal:
- start: 1420
  end: 1494
  type: life_span
- start: 1439
  end: 1459
  type: flourished
titles: []
extra_info: []
assistant