21049
A - site binding , peptidyl transferase activity , and termination of peptide chain synthesis underwent less pronounced but measurable reductions , a finding which explains why poly ( Phe ) - synthesis in ribosomes isolated from exposed mussels is reduced by 70 % .
 Chemical: poly ( Phe )
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: poly ( Phe )