Parse this person name:

Juan Tomas, 1415-1483, flourished 1442-1459
user
first_name: Juan
last_name: Tomas
middle_names: []
temporal:
- start: 1415
  end: 1483
  type: life_span
- start: 1442
  end: 1459
  type: flourished
titles: []
extra_info: []
assistant