Each row represents an example from the data.
we examined monologues (TED talks; Cettolo et al., 2012), Wikipedia (WikiText-2 and WikiText-103;Merity et al., 2016), journalistic text (PTB: Marcus et al., 1993), and product reviews (Amazon reviews 3 ) in which we found that more than 35.5%, 33.2%, 32.9%, 22.2%, and 37.5% of the numbers, respectively, are NFHs.