14869
The aim of the present experiments was to determine if exposure to highly purified NDL - PCBs ( to remove Ah receptor active contaminants ) also results in alteration of sweet preference .
 Chemical: PCBs
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: PCBs