Parse this person name:

Quinn Walter, 1247-1311, flourished 1274-1298
user
first_name: Quinn
last_name: Walter
middle_names: []
temporal:
- start: 1247
  end: 1311
  type: life_span
- start: 1274
  end: 1298
  type: flourished
titles: []
extra_info: []
assistant