I assume, considering the Onset principle, that there are not many languages that have a structure with VV or VVV but are there languages that have a CV.VV structure? If there is, I would assume that these vowels tend to gravitate towards cardinal vowels in order to keep too many phonemes being reduced/neutralized?
Likewise, I assume languages that have long consonant clusters (like Polish, Georgian or Armenian) have a specific set of consonants available based on what is likely to keep its perceptual cues. For example, these languages allow long clusters of fricatives because a fricative is more likely to keep its perceptual cue (according to Wright 2004) than a string of stops. Assuming this, then these languages would have a reduced inventory of other consonants like stops, nasals and liquids, no?
My professor suggested turning this into a research paper so I'm trying to get a feel of what info is available. Are there other languages other than the ones that I've mentioned that have long vowel or consonant clusters?