On grammatical class:

ni'o
discursive: paragraph break; introduce new topic.
no'i
discursive: paragraph break; resume previous topic.

In definition:

cmavrni'o
x1 is the selma'o "NIhO".

In notes:

mei zei ni'orsu
x1 is a part of Lojban text representing rule 'paragraphs' according to the first edition of the book 'The Complete Lojban Language'.
pa zei jarnezi
x1 is a part of Lojban text representing rule 'text-1' according to the first edition of the book 'The Complete Lojban Language'.