Parse this person name:

Jeffrey Hart, 1286-1358, flourished 1314-1324
user
first_name: Jeffrey
last_name: Hart
middle_names: []
temporal:
- start: 1286
  end: 1358
  type: life_span
- start: 1314
  end: 1324
  type: flourished
titles: []
extra_info: []
assistant