19862
The refolded 6His - TAT - Ainp1 interacts with the helix - loop - helix ( HLH ) domain of ARNT in a similar fashion as the native 6His - Ainp1 .
 Chemical: 6His; Chemical: 6His
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: 6His, 6His 
Answer:
 Chemical: 6His; Chemical: 6His