18032
In addition , we confirmed that mean levels of E2 - 3 , 4 - Q - 2 - S - Alb in breast cancer patients were ~ 5 - fold greater than in those of controls ( p < 0 . 001 ) .
 Chemical: E2 - 3 , 4 - Q
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: E2 - 3 , 4 - Q 
Answer:
 Chemical: E2 - 3 , 4 - Q