On gloss:

bansu'oju in sense "Soi language"
x1 is the language with ISO 639-3 code “soj” (Soi).

On grammatical class:

soi
discursive: reciprocal sumti marker; indicates a reciprocal relationship between sumti.

In definition:

cmavrsoi
x1 is the selma'o "SOI".

In notes:

adverbi
x1 is an adverbial adjunct (adverb or adverbial clause) meaning x2 in language x3