23595
The observed temperature dependence was interpreted using Anderson ' s theory of motional narrowing , where the magnetic parameters for the different states are averaged as the copper rapidly hops between sites .
 Chemical: copper
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: copper 
Answer:
 Chemical: copper