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Table 2 Number of homonyms (%) generated for every rewrite rule.

From: Rewriting and suppressing UMLS terms for improved biomedical term identification

Rewrite rule

No of homonyms (%)

Syntactic inversion

303 (0.1)

Possessives

40 (0.4)

Short/long form

321 (52.7)

Angular brackets

218 (7.2)

Semantic type

130 (1.8)

Begin parentheses

28 (6.9)

End parentheses

5,505 (10.8)

Begin brackets

249 (2.1)

End brackets

37,083 (67.8)

  1. The percentage is relative to the total number of rewritten terms for every rule.