18874
Epigallocatechin gallate ( EGCG ) , the major catechin contained in tea leaves , is known to possess the synergistic anti - staphylococcal activity in combination with various beta - lactam antibiotics and tetracycline .
 Chemical: Epigallocatechin gallate; Chemical: EGCG; Chemical: catechin; Chemical: beta - lactam; Chemical: tetracycline
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: Epigallocatechin gallate; Chemical: EGCG; Chemical: catechin; Chemical: beta - lactam; Chemical: tetracycline