27420
Depending on the promoter nature , different orientations of SLAC at pyrene - and neocuproine - modified electrodes can be followed from the kinetic analysis of the ET rates .
 Chemical: pyrene; Chemical: neocuproine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: pyrene, neocuproine 
Answer:
 Chemical: pyrene; Chemical: neocuproine