Parse this person name:

Ruben Biggen, 1851-1903, flourished 1876-1887
user
first_name: Ruben
last_name: Biggen
middle_names: []
temporal:
- start: 1851
  end: 1903
  type: life_span
- start: 1876
  end: 1887
  type: flourished
titles: []
extra_info: []
assistant