Guayabero language

Guayabero is a Guahiban language that is spoken by a thousand people in Colombia. Many of its speakers are monoglots, with few fluent Spanish speakers in the population.

Phonology
The Guayabero syllable structure can be represented as CV(V)(C)(C). Each syllable has an obligatory single consonant onset and a nucleus of one or two vowels. An optional coda of at most two consonants can occur in both word-medial and final positions.