29734
Conversely , losartan attenuated the impaired ACh relaxation observed in SHR .
 Chemical: losartan; Chemical: ACh
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: losartan, ACh 
Answer:
 Chemical: losartan; Chemical: ACh