Parse this person name:

Elizabeth Johnson, 1351-1412, flourished 1368-1384
user
first_name: Elizabeth
last_name: Johnson
middle_names: []
temporal:
- start: 1351
  end: 1412
  type: life_span
- start: 1368
  end: 1384
  type: flourished
titles: []
extra_info: []
assistant