18284
Modeling studies indicated that binding - site interactions and energies of interaction for CP55 , 940 were similar between wild - type and mutant receptors .
 Chemical: CP55 , 940
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: CP55 , 940 
Answer:
 Chemical: CP55 , 940