fau BAI cmavo

fasnu modal, 1st place (non-causal) in the event of ...

On affix form:

fasnu
x1 (event) is an event that happens/occurs/takes place; x1 is an incident/happening/occurrence.

In definition:

poi'o'a
restrictive first place adverbial: converts selbri to bridi adverbial term. The outer bridi is claimed to occur together with the event of the first place of that bridi satisfying the converted selbri. {broda poi'o'a brode} means {broda fau lo nu vo'a brode}.

In notes:

lu'ei
convert a grammatical quotation to a tanru unit; x1 expresses/says the quoted text for audience x2 via expressive medium x3.
faunli
x1 (nu) happens together with x2 (nu); x1 happens while x2 (one sense)