9739
Herein , we report SAR studies which involved structural modifications to the phenyl rings and methylamino linker portion attached to the benzimidazole core .
 Chemical: phenyl; Chemical: methylamino; Chemical: benzimidazole
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: phenyl; Chemical: methylamino; Chemical: benzimidazole