On grammatical class:

cu
elidable marker: separates selbri from preceding sumti, allows preceding terminator elision.

In definition:

tunka
x1 is made of/contains/is a quantity of copper (Cu); [metaphor: reddish, electrical conductor].

In notes:

jarco
x1 (agent) shows/exhibits/displays/[reveals]/demonstrates x2 (property) to audience x3.
xlali
x1 is bad for x2 by standard x3; x1 is poor/unacceptable to x2.
kucyvla
x1=v1=k1 is a word/quotation crossing other words/quotations, meaning/defined by x2=v2, located at x3=k3
sofybakni
Nonce word; no clear meaning. Something like x1 is a Soviet cow of species / breed x2.