14855
Whereas the beta - glycine nanocrystals were stable indefinitely in ambient air and persisted upon heating , they transformed to the alpha polymorph upon standing at room temperature and 90 % relative humidity ( RH ) .
 Chemical: beta - glycine
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