4090
The first death was observed at day 3 for imidacloprid and at day 7 for thiram .
 Chemical: imidacloprid; Chemical: thiram
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: imidacloprid; Chemical: thiram