Parse this person name:

Alexis Johnson (1375-1437, flourished 1404-1428)
user
first_name: Alexis
last_name: Johnson
middle_names: []
temporal:
- start: 1375
  end: 1437
  type: life_span
- start: 1404
  end: 1428
  type: flourished
titles: []
extra_info: []
assistant