Parse this person name:

Silvia Tomás, 1311-1374, flourished 1331-1358
user
first_name: Silvia
last_name: Tomás
middle_names: []
temporal:
- start: 1311
  end: 1374
  type: life_span
- start: 1331
  end: 1358
  type: flourished
titles: []
extra_info: []
assistant