16838
Moreover , the strain energy curves of armchair imogolite - like NTs also present minima , although in all cases less stable than zigzags by at least 2 . 2 meV per atom .
 Chemical: imogolite
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: imogolite 
Answer:
 Chemical: imogolite