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The major catechin from green tea is ( - ) - epigallocatechin - 3 - gallate ( EGCG ) , which has garnered attention for its potential to prevent oxidative stress - related diseases .
 Chemical: catechin; Chemical: ( - ) - epigallocatechin - 3 - gallate; Chemical: EGCG
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: catechin; Chemical: ( - ) - epigallocatechin - 3 - gallate; Chemical: EGCG