On grammatical class:

me'u
elidable terminator: end sumti that was converted to selbri; usually elidable.

In definition:

cmavrme'u
x1 is the selma'o "MEhU".

In notes:

re zei taulka
x1 is a part of Lojban text representing rule 'tanru-unit-2' according to the first edition of the book 'The Complete Lojban Language'.