On grammatical class:

la
name descriptor: the one(s) called ... ; takes name or selbri description.
la'i
name descriptor: the set of those named ... ; takes name or selbri description.
lai
name descriptor: the mass of individual(s) named ... ; takes name or selbri description.
la'ei
combines LA with DOI

In notes:

gadri
x1 is an article/descriptor labelling description x2 (text) in language x3 with semantics x4.
selklucipra
x1=c1 is a test/shibboleth for determining x2=k2=c3's membership/belonging to culture x3=k1=c2.
jbopomofo
x1 is a jbopomofo orthography (bopomofo orthography adapted for lojban)
ba'ei
forethought emphasis indicator; indicates next WORD only, even if that word is a construct-indicating cmavo
li'oi
marks word as being optional, i.e. the bridi would still be both grammatical AND reflect the speakers opinion/intention would the marked construct be left out