Parse this person name:

Matthew Nelson, 1218-1298, flourished 1236-1260
user
first_name: Matthew
last_name: Nelson
middle_names: []
temporal:
- start: 1218
  end: 1298
  type: life_span
- start: 1236
  end: 1260
  type: flourished
titles: []
extra_info: []
assistant