Parse this person name:

Stinis Marchal, Lex Livia Y. L. Lieve, 1768-1798
user
first_name: Lex
last_name: Stinis Marchal
middle_names:
- Livia
- Y.
- L.
- Lieve
temporal:
- start: 1768
  end: 1798
  type: life_span
titles: []
extra_info: []
assistant