15753
The mean levels of omethoate , phorate , chlorpyrifos , methidathion , ethoprophos in vegetables exceeded the maximum residue limits ( MRLs ) allowed by the Ministry of Health , of China .
 Chemical: omethoate; Chemical: phorate; Chemical: chlorpyrifos; Chemical: methidathion; Chemical: ethoprophos
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: omethoate; Chemical: phorate; Chemical: chlorpyrifos; Chemical: methidathion; Chemical: ethoprophos