human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Number, Départment (or collectivity), Président, Party, Since
###Question: Which department has Guy-Dominique Kennel as president since 2008?
gpt
SELECT Départment (or collectivity) FROM table WHERE Since = 2008 AND Président = guy-dominique kennel