Parse this person name:

Britt van Leuven, 1862-1934, flourished 1887-1912
user
first_name: Britt
last_name: van Leuven
middle_names: []
temporal:
- start: 1862
  end: 1934
  type: life_span
- start: 1887
  end: 1912
  type: flourished
titles: []
extra_info: []
assistant