Parse this person name:

Benjamin Poncelet, 1313-1377, flourished 1328-1350
user
first_name: Benjamin
last_name: Poncelet
middle_names: []
temporal:
- start: 1313
  end: 1377
  type: life_span
- start: 1328
  end: 1350
  type: flourished
titles: []
extra_info: []
assistant