16477
In this manuscript , a series of novel Schiff base compounds were designed and synthesized , and their biological activities were evaluated as potential inhibitors .
 Chemical: Schiff base
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: Schiff base 
Answer:
 Chemical: Schiff base