Parse this person name:

Guy Gaillard-Mercier, 1406-1482, flourished 1432-1448
user
first_name: Guy
last_name: Gaillard-Mercier
middle_names: []
temporal:
- start: 1406
  end: 1482
  type: life_span
- start: 1432
  end: 1448
  type: flourished
titles: []
extra_info: []
assistant