Parse this person name:

Ruben Valenciano, 1339-1395, flourished 1357-1376
user
first_name: Ruben
last_name: Valenciano
middle_names: []
temporal:
- start: 1339
  end: 1395
  type: life_span
- start: 1357
  end: 1376
  type: flourished
titles: []
extra_info: []
assistant