Parse this person name:

Ramón Mercader (1912-1984, flourished 1931-1951)
user
first_name: Ramón
last_name: Mercader
middle_names: []
temporal:
- start: 1912
  end: 1984
  type: life_span
- start: 1931
  end: 1951
  type: flourished
titles: []
extra_info: []
assistant