The authors trained and tested on four datasets: Their own PoFo (Poetry Foundation) dataset, comprising 680 sentences that include Type I metaphor scraped from the Poetry Foundation website, the benchmark datasets TroFi by Birke and Sarkar (2006) (6,435 sentences from the Wall Street Journal Corpus) and MOH by Mohammad, Shutova, and Turney (2016) (647 sentences from WordNet). Finally, they created a fourth concatenated dataset which combines PoFo, TroFi and MOH. See table 1 for an overview of sample sentences labelled “metaphorical” from each dataset.