It would be useful if the model could utilize the (non-adjacent) information about "Sp1" being "protein" to classify "CP1" as "protein".
for example, the best f-score in the shared task of Bio-NER in COLING 2004 JNLPBA (Kim et al., 2004) was 72.55% (Zhou and Su, 2004) 1 , whereas the best performance at MUC-6, in which systems tried to identify general named entities such as person or organization names, was an accuracy of 95% (Sundheim, 1995).