Parse this person name:

Sebastián Villaverde (1312-1381, flourished 1341-1366)
user
first_name: Sebastián
last_name: Villaverde
middle_names: []
temporal:
- start: 1312
  end: 1381
  type: life_span
- start: 1341
  end: 1366
  type: flourished
titles: []
extra_info: []
assistant