24873
Rats were pre - fed normal diet and the diet rich in FXO for 14 days , and then , four doses of lead acetate ( 25 mg / kg body weight ) were administered intraperitoneally while still on diet .
 Chemical: lead acetate
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: lead acetate