2076
Spectral analyses were conducted by dividing the whole spectrum into different frequency bands including delta , theta ( slow and fast ) , alpha - sigma , beta ( 1 and 2 ) and gamma ( 1 and 2 ) bands .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities:  
Answer:
 None