Parse this person name:

James Williams, 1450-1511, flourished 1471-1486
user
first_name: James
last_name: Williams
middle_names: []
temporal:
- start: 1450
  end: 1511
  type: life_span
- start: 1471
  end: 1486
  type: flourished
titles: []
extra_info: []
assistant