5722
In the dark MB inhibits reversibly , binding being accompanied by a bathochromic shift that can be used to show its displacement by other reversible inhibitors binding to the catalytic ' anionic ' subsite ( CAS ) , the peripheral ' anionic ' subsite ( PAS ) , or bridging them .
 None
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:  
Answer:
 None