23232
Instead , a lower relative content of methyl esters , such as methyl hexanoate and methyl octanoate , known to act as medfly pheromone and attractant respectively , was found in the least susceptible cvs .
 Chemical: methyl esters; Chemical: methyl hexanoate; Chemical: methyl octanoate
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: methyl esters; Chemical: methyl hexanoate; Chemical: methyl octanoate