Parse this person name:

Steven Leonard, 1710-1770, flourished 1725-1739
user
first_name: Steven
last_name: Leonard
middle_names: []
temporal:
- start: 1710
  end: 1770
  type: life_span
- start: 1725
  end: 1739
  type: flourished
titles: []
extra_info: []
assistant