Parse this person name:

Derek Galvan (1733-1784, flourished 1763-1776)
user
first_name: Derek
last_name: Galvan
middle_names: []
temporal:
- start: 1733
  end: 1784
  type: life_span
- start: 1763
  end: 1776
  type: flourished
titles: []
extra_info: []
assistant