Add spaces: Butinfactit'sproblematictospeakofthesequencebecausethedifferenteditionsvarywildlywhenitcomestothesequence,thenumberofverses,andwhichpictureillustrateswhichverse(seethisoverview).
But in fact it's problematic to speak of the sequence because the different editions vary wildly when it comes to the sequence, the number of verses, and which picture illustrates which verse (see this overview).