19921
Rational design , synthesis and QSAR study of vasorelaxant active 3 - pyridinecarbonitriles incorporating 1H - benzimidazol - 2 - yl function .
 Chemical: 3 - pyridinecarbonitriles; Chemical: 1H - benzimidazol - 2 - yl
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: 3 - pyridinecarbonitriles, 1H - benzimidazol - 2 - yl 
Answer:
 Chemical: 3 - pyridinecarbonitriles; Chemical: 1H - benzimidazol - 2 - yl