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Table 2 List of “is a” relations identified in Yeganova et al. [ 39 ]

From: Identifying named entities from PubMed® for enriching semantic categories

X is a Y

X is a potent Y

X are Y

X is the most common Y

X and other Y

X are rare Y

X as a Y

X is a widely used Y

X such as Y

X is an uncommon Y

X is an Y

X is an autosomal dominant Y

X as an Y

X is a form of Y

X is an important Y

X is one of the major Y

X a new Y

X is a chronic Y

X are the most common Y

X and other forms of Y

X is a rare Y

X is a broad spectrum Y

X is a novel Y

X is the primary Y

X is a major Y

X is a rare autosomal recessive Y

X is an essential Y

X is the most common type of Y

X was the only Y

X is the second most common Y

X was the most common Y

X are the most frequent Y

X is a common Y

X is the most widely used Y

X is a new Y

X is the most frequent Y

X is a complex Y

X is the most common primary Y

X is an effective Y

X is one of the major Y

  1. These patterns are summarized as “X is/are/as DT... Y” in our method, where X is a phrase, DT is a determiner and Y is a headword.