[Koha] Zebra and Italian records

Hi, a question of the Koha installer is: Koha supplies Zebra configuration files tuned for searching either English (en) or French (fr) MARC records. Primary language for Zebra indexing (en, fr) [en] Which is the best choice for Italian records? I wasn't able to find something useful in http://www.indexdata.dk/zebra/doc/. Thanks a lot. Stefano