9908
Premating exposure to 40 ppm ZEA diet reduced fertilization rate , whereas postmating exposure to 40 ppm ZEA diet delayed embryo transport and preimplantation embryo development , which subsequently affected embryo implantation .
 Chemical: ZEA; Chemical: ZEA
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: ZEA; Chemical: ZEA