Parse this person name:

Jeffrey Rivera (1416-1461, flourished 1435-1456)
user
first_name: Jeffrey
last_name: Rivera
middle_names: []
temporal:
- start: 1416
  end: 1461
  type: life_span
- start: 1435
  end: 1456
  type: flourished
titles: []
extra_info: []
assistant