9045
A conformational diversity along the rotation of the dimethylamino group was speculated to account for the observed diffusive dynamics .
 Chemical: dimethylamino
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: dimethylamino 
Answer:
 Chemical: dimethylamino