26153
Crystallographic studies of 11c , 28 , and 31 bound in the SIRT3 active site revealed that the common carboxamide binds in the nicotinamide C - pocket and the aliphatic portions of the inhibitors extend through the substrate channel , explaining the observable SAR .
 Chemical: carboxamide; Chemical: nicotinamide
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: carboxamide, nicotinamide 
Answer:
 Chemical: carboxamide; Chemical: nicotinamide