Parse this person name:

Carlos Duncan, 1201-1281, flourished 1220-1231
user
first_name: Carlos
last_name: Duncan
middle_names: []
temporal:
- start: 1201
  end: 1281
  type: life_span
- start: 1220
  end: 1231
  type: flourished
titles: []
extra_info: []
assistant