22757
High - quality core / shell CdSe / CdS colloidal nanocrystals are demonstrated to be efficient sources of non - classical light .
 Chemical: CdSe; Chemical: CdS
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: CdSe; Chemical: CdS