11565
A cooperative Jahn - Teller distortion is formed by an ordering of the longest Mn - O bonds between two neighboring octahedra along the chain direction .
 Chemical: Mn - 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: Mn - O