14887
These results demonstrate the general utility of reactive nanoscale precursors in the synthetic discovery of new Cu ( I ) - based semiconducting oxides and which also show promise for use in solar energy conversion applications .
 Chemical: Cu ( I ); Chemical: oxides
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: Cu ( I ); Chemical: oxides