25335
Their origins have been linked to POD activity in the presence of 2 , 4 - DCP .
 Chemical: 2 , 4 - DCP
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: 2 , 4 - DCP