6338
Based on these results , we constructed an exciton model to describe the absorption spectra of a 6 - MI dinucleotide - substituted double - stranded DNA construct .
 Chemical: 6 - MI
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: 6 - MI