Parse this person name:

Leonard Ward-Walker, 1247-1296, flourished 1267-1279
user
first_name: Leonard
last_name: Ward-Walker
middle_names: []
temporal:
- start: 1247
  end: 1296
  type: life_span
- start: 1267
  end: 1279
  type: flourished
titles: []
extra_info: []
assistant