Parse this person name:

Benjamin Guyon (1703-1779, flourished 1721-1735)
user
first_name: Benjamin
last_name: Guyon
middle_names: []
temporal:
- start: 1703
  end: 1779
  type: life_span
- start: 1721
  end: 1735
  type: flourished
titles: []
extra_info: []
assistant