Parse this person name:

Richard Duval (1725-1790, flourished 1751-1779)
user
first_name: Richard
last_name: Duval
middle_names: []
temporal:
- start: 1725
  end: 1790
  type: life_span
- start: 1751
  end: 1779
  type: flourished
titles: []
extra_info: []
assistant