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Table 12 Examples of chemical names with corresponding basic segments.

From: Optimising chemical named entity recognition with pre-processing analytics, knowledge-rich features and heuristics

Token Basic segments No. of basic segments
10-acetoxyactinidine 10, acet, oxy, actin, idine 5
methylergonovine methyl, ergo, novi, ne 4
interleukin-2 interleukin, 2 2