Parse this person name:

Rachel Brown (1449-1504, flourished 1477-1493)
user
first_name: Rachel
last_name: Brown
middle_names: []
temporal:
- start: 1449
  end: 1504
  type: life_span
- start: 1477
  end: 1493
  type: flourished
titles: []
extra_info: []
assistant