Parse this person name:

Brunel Dumas, Élisabeth Frédérique Roger Mathilde, Vaillant-les-Bains
user
first_name: Élisabeth
last_name: Brunel Dumas
middle_names:
- Frédérique
- Roger
- Mathilde
temporal: []
titles: []
extra_info:
- Vaillant-les-Bains
assistant