95
Male Sprague - Dawley rats were randomly assigned to a lead - treated group ( given lead acetate , 100 ppm , in drinking water and regular rat chow ) , a group given lead and vitamin E - fortified chow , or a normal control group given either regular food and water or vitamin E - fortified food for 12 weeks .
 Chemical: lead; Chemical: lead acetate; Chemical: lead; Chemical: vitamin E; Chemical: vitamin E
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: lead; Chemical: lead acetate; Chemical: lead; Chemical: vitamin E; Chemical: vitamin E