parataxis:rep: reported speech or digression in discursive form
As a subtype of parataxis, rep is principally used to mark direct speech inserted into the sentence.
Direct or reported speech can be syntactically ambivalent, because on the one hand, as a whole, it behaves in a similar manner to a nominal argument (e.g. obj or nsubj), but, on the other hand, it constitutes a completely independent uttering with respect to the main sentence.
This relation is no longer used as of UD v2.11: it is replaced by ccomp:reported and csubj:reported.
The same logic and subrelation is applied to digressions in the sentence that take the form of independent and complex clauses themselves, factually beginning a new sentence. The two blocks are however still in a (loose) syntactical relation, because the digression is not infrequently introduced by some element in the main clause, in a similar way to explicative co-ordinations. The relation might also be pointed to by dedicated punctuation marks.
In both cases, the strategy is that of juxtaposition, and any morphosyntactical marks of subordination or co-ordination (e.g. subordinating conjunctions, non-finite verb forms, constructions in oblique cases, discourse particles…) are lacking, hence the use of parataxis; at the same time, the subrelation rep acknowledges that the two juxtaposed (sometimes even interwoven) blocks are conceptually more connected than with usual parataxis.
parataxis:rep in other languages: [ckt] [gun] [la]