4309
The utility of these methods is illustrated through the analysis of plasma samples obtained from patients taken 1 - 49days after ingestion of the organophosphate pesticides chlorpyrifos and / or diazinon .
 Chemical: organophosphate; Chemical: chlorpyrifos; Chemical: diazinon
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: organophosphate; Chemical: chlorpyrifos; Chemical: diazinon