Question: The Vercelli Book is one of the oldest of the Old English Poetic Codices, one of the others being the Junius manuscript, is one of the how many major codices of Old English literature? 
Sentence (from "Junius manuscript"): Modern editors have determined that the manuscript is made of four poems, to which they have given the titles "Genesis", "Exodus", "Daniel", and "Christ and Satan".
Relevant evidence: No