From: Optimising chemical named entity recognition with pre-processing analytics, knowledge-rich features and heuristics
Surface form
Lemma
Part-of-speech tag
Chunk tag
It
PRP
B-NP
attenuated
attenuate
VBD
B-VP
GSK214a
NN
-induced
JJ
I-NP
gestation
in
IN
B-PP
rats
rat
.
O