Parse this person name:

Rowan Werl-Arnsberg, van (1928-2001, flourished 1954-1965)
user
first_name: Rowan
last_name: Werl-Arnsberg, van
middle_names: []
temporal:
- start: 1928
  end: 2001
  type: life_span
- start: 1954
  end: 1965
  type: flourished
titles: []
extra_info: []
assistant