3920
Nearly half of the AKRs are expected to be monomeric , but there are examples of dimeric , trimeric and octameric enzymes , as well as diversity in specificity for NAD as well as NADP as a cofactor .
 Chemical: NAD; Chemical: NADP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: NAD; Chemical: NADP