24937
Both nitrobenzene and 1 , 4 - dinitrobenzene decreased fluorescence intensity and molecular conductivity , while toluene had no effect .
 Chemical: nitrobenzene; Chemical: 1 , 4 - dinitrobenzene; Chemical: toluene
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: nitrobenzene; Chemical: 1 , 4 - dinitrobenzene; Chemical: toluene