We are interested in multi-sentence texts, both machine-and humangenerated.
we consider subsets of two corpora that have been judged by humans: a collection of automatically generated summaries of articles in the CNN/Daily Mail news dataset (alongside reference summaries; see Section 4.1; Chaganty et al., 2018;Hermann et al., 2015;Nallapati et al., 2016) and student essays from the Hewlett Foundation's Automated Student Assessment Prize (Section 4.2).