Parse this person name:

Merle Pichon, Guillaume Zacharie U. Luc, 1919-1978
user
first_name: Guillaume
last_name: Merle Pichon
middle_names:
- Zacharie
- U.
- Luc
temporal:
- start: 1919
  end: 1978
  type: life_span
titles: []
extra_info: []
assistant