nalmosysna lujvo

s1 is an approximant consonant with place of articulation m2=m3 and phonation x3.

cf. zunsna

In notes:

iasnce
x1 is a voiced palatal approximant sound produced by x2.
uasnce
x1 is a voiced labiovelar approximant sound produced by x2.
ibu zei zunsna
x1 is a voiced palatal approximant/glide sound produced by x2.
ubu zei zunsna
x1 is a voiced labiovelar approximant/glide sound produced by x2.