tu'u TUhE… TUhU cmavo

elidable terminator: end multiple utterance scope; seldom elidable.

On affix form:

tubnu
x1 is a length of tubing/pipe/hollow cylinder [shape/form] of material x2, hollow of material x3.

In notes:

fa'orma'o
x1 is the terminator of structure originated by selma'o x2 in language x3.