28317
Site - directed mutagenesis , as well as molecular modeling and ligand docking studies based on recently solved muscarinic receptor structures , further support the definition of two groups of Bodipy - pirenzepine derivatives exhibiting distinct allosteric binding poses .
 Chemical: Bodipy; Chemical: pirenzepine
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: Bodipy, pirenzepine 
Answer:
 Chemical: Bodipy; Chemical: pirenzepine