Parse this person name:

Valentine Guichard (1441-1506, flourished 1470-1487)
user
first_name: Valentine
last_name: Guichard
middle_names: []
temporal:
- start: 1441
  end: 1506
  type: life_span
- start: 1470
  end: 1487
  type: flourished
titles: []
extra_info: []
assistant