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Table 9 Most common clue expressions for Polarity = Negative

From: Enriching a biomedical event corpus with meta-knowledge annotation

Category

Freq

not

1141

no

199

independent

113

without

65

failed

47

nor

47

absence

42

neither

38

unaffected

28

lack

23

un

23

unable

19

independently

18

resistant

15

fails

13