8345
Hydrophobic carbon nanotubes ( CNTs ) and hydrophilic nanofilaments such as oxidized CNTs , Pd nanowires ( NWs ) , and MnO ( 2 ) NWs are transformed from wires to rings by a general methodology .
 Chemical: carbon; Chemical: Pd; Chemical: MnO ( 2 )
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: carbon; Chemical: Pd; Chemical: MnO ( 2 )