Parse this person name:

Justin Stuart, 1319-1379, flourished 1341-1359
user
first_name: Justin
last_name: Stuart
middle_names: []
temporal:
- start: 1319
  end: 1379
  type: life_span
- start: 1341
  end: 1359
  type: flourished
titles: []
extra_info: []
assistant