8492
( iii ) ( TiO ( 2 ) ) ( 2 ) ( Cu ( 2 ) O ) has the lowest formation energy amongst all studied alloys and the positions of its band edges are found to be suitable for solar - driven water splitting applications .
 Chemical: ( TiO ( 2 ) ) ( 2 ) ( Cu ( 2 ) O )
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: ( TiO ( 2 ) ) ( 2 ) ( Cu ( 2 ) O )