Parse this person name:

William Marchand, 1679-1756, flourished 1706-1736
user
first_name: William
last_name: Marchand
middle_names: []
temporal:
- start: 1679
  end: 1756
  type: life_span
- start: 1706
  end: 1736
  type: flourished
titles: []
extra_info: []
assistant