Question: How were the datasets annotated?
Answer: 1. Each annotator must assign an integer score between 0 and 6 (inclusive) indicating how semantically similar the two words in a given pair are. A score of 6 indicates very high similarity (i.e., perfect synonymy), while zero indicates no similarity., 2. Each annotator must score the entire set of 1,888 pairs in the dataset.,  able to use external sources (e.g. dictionaries, thesauri, WordNet) if required, not able to communicate with each other during the annotation process