16440
The DDE concentrations in non - fullerene - exposed shoots , roots , and earthworms were 181 , 7 , 400 , and 8 , 230 ng / g , respectively .
 Chemical: DDE; Chemical: fullerene
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: DDE, fullerene 
Answer:
 Chemical: DDE; Chemical: fullerene