25555
Chelating agents such as EDTA , EGTA , and 1 , 10 - phenantroline blocked Heminecrolysin - induced LPC hydrolysis at 98 , 48 , and 70 % respectively .
 Chemical: EDTA; Chemical: EGTA; Chemical: 1 , 10 - phenantroline
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: EDTA, EGTA, 1 , 10 - phenantroline 
Answer:
 Chemical: EDTA; Chemical: EGTA; Chemical: 1 , 10 - phenantroline