Parse this person name:

Ralph Martin, 1429-1500, flourished 1454-1472
user
first_name: Ralph
last_name: Martin
middle_names: []
temporal:
- start: 1429
  end: 1500
  type: life_span
- start: 1454
  end: 1472
  type: flourished
titles: []
extra_info: []
assistant