slaka gismu

x₁ is a syllable in language x₂.

In notes:

bangu: x₁ is a/the language/dialect used by x₂ to express/communicate x₃ (si'o/du'u, not quote).
sance: x₁ is sound produced/emitted by x₂.
valsi: x₁ is a word meaning/causing x₂ in language x₃; (adjective: x₁ is lexical/verbal).
slakymidju: m₁ (sance) is (in)/occupies the nucleus of syllable s₁=m₂.
slakypevgra: x₁ (zoi quote) is x₂ moras/morae in 'weight' (default: 1) by standard x₃.
lenguua: x₁ is a language used by x₂ to express x₃ (du'u, not quote)