15708
Here , a thorough survey is provided of the synthesis of SnO ( 2 ) - based nanomaterials with various structures and chemical compositions , and their application as negative electrodes for LIBs .
 Chemical: SnO ( 2 )
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: SnO ( 2 ) 
Answer:
 Chemical: SnO ( 2 )