14858
In contrast , beta - glycine nanocrystals grown in the presence of an enantiopure amino acid auxiliary , which binds to the fast - growing end of only one of the enantiomorphs , thus suppressing its formation and leaving the other enantiomorph unperturbed , transformed into the alpha polymorph under the same conditions .
 Chemical: beta - glycine; Chemical: amino acid
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: beta - glycine; Chemical: amino acid