3397
Indeed , a bentonite clay showed decreased passage of tylosin through the epithelial monolayer , indicating binding of tylosin by bentonite .
 Chemical: bentonite; Chemical: tylosin; Chemical: tylosin; Chemical: bentonite
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: bentonite; Chemical: tylosin; Chemical: tylosin; Chemical: bentonite