Parse this person name:

Frederick Gentry (1728-1800, flourished 1753-1768)
user
first_name: Frederick
last_name: Gentry
middle_names: []
temporal:
- start: 1728
  end: 1800
  type: life_span
- start: 1753
  end: 1768
  type: flourished
titles: []
extra_info: []
assistant