the database is distributed as a plain text file with one entry to a line in the format "codice_1" with a two-space separator between the parts. if multiple pronunciations are available for a word, variants are identified using numbered versions (e.g. codice_2). the pronunciation is encoded using a modified form of the arpabet system, with the addition of stress marks on vowels of levels 0, 1, and 2. a line-initial codice_3 token indicates a comment. a derived format, directly suitable for speech recognition engines is also available as part of the distribution; this format collapses stress distinctions (typically not used in asr).