21100
Although naturally occurring electrophilic plant compounds , such as mustard oil and cinnamaldehyde , are TRPA1 agonists , it is unknown whether arthropod - produced electrophiles activate mammalian TRPA1 .
 Chemical: cinnamaldehyde
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: cinnamaldehyde