Parse this person name:

John Frost (1756-1810, flourished 1774-1785)
user
first_name: John
last_name: Frost
middle_names: []
temporal:
- start: 1756
  end: 1810
  type: life_span
- start: 1774
  end: 1785
  type: flourished
titles: []
extra_info: []
assistant