One of the largest collections of Imperial Aramaic texts is that of the Persepolis fortification tablets, which number about five hundred. Many of the extant documents witnessing to this form of Aramaic come from Egypt, and Elephantine in particular (see Elephantine papyri). Of them, the best known is the "Story of Ahikar", a book of instructive aphorisms quite similar in style to the biblical Book of Proverbs. In addition, current consensus regards the Aramaic portion of the Biblical book of Daniel (i.e., 2:4b-7:28) as an example of Imperial (Official) Aramaic.