Parse this person name:

Bryan Christian (1337-1403, flourished 1354-1380)
user
first_name: Bryan
last_name: Christian
middle_names: []
temporal:
- start: 1337
  end: 1403
  type: life_span
- start: 1354
  end: 1380
  type: flourished
titles: []
extra_info: []
assistant