27455
pH - Responsive Aggregation States of Chiral Polymerizable Amphiphiles from l - Tyrosine and l - Phenyl Alanine in Water .
 Chemical: l - Tyrosine; Chemical: l - Phenyl Alanine
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: l - Tyrosine; Chemical: l - Phenyl Alanine