1183
These results indicate that the sulfhydryl group of certain angiotensin converting enzyme inhibitors can potentiate their effect on the endogenous nitrovasodilator EDRF .
 GENE: angiotensin converting enzyme; GENE: EDRF
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: angiotensin converting enzyme, EDRF 
Answer:
 GENE: angiotensin converting enzyme; GENE: EDRF