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Table 1 An example of all features

From: A neural network approach to chemical and gene/protein entity recognition in patents

Input Substituted piperidines with selective binding to histamine h3 receptor .
Word substituted piperidines with selective binding to histamine h3 receptor .
Character s u b s t i t u d e d p i p e r i d i n e s w i t h s e l e c t i v e b i n d i n g t o h i s t a m i n e h 3 r e c e p t o r .
Cap firstCaps lower lower lower lower lower lower lower lower lower lower
POS VBN NNS IN JJ NN TO NN NN HYPH NN .
Chunk B-NP I-NP B-PP B-NP I-NP B-PP B-NP I-NP B-NP I-NP O
NER O O O O O O B-protein I-protein I-protein I-protein O