Parse this person name:

Peter Thomas (1686-1754, flourished 1703-1721)
user
first_name: Peter
last_name: Thomas
middle_names: []
temporal:
- start: 1686
  end: 1754
  type: life_span
- start: 1703
  end: 1721
  type: flourished
titles: []
extra_info: []
assistant