2980
In groups given 2 % BHA , although marked hyperplastic changes of the forestomach epithelium were observed in all animals , co - administration of 0 . 25 % RA significantly ( P less than 0 . 05 ) increased the incidence of forestomach tumors ( squamous cell papilloma and carcinoma ) to 60 % ( 9 / 15 , 2 rats with carcinoma ) from 15 % ( 3 / 20 , one rat with carcinoma ) in the group given RA - free water .
 Chemical: BHA; Chemical: RA; Disease: forestomach tumors; Disease: squamous cell papilloma; Disease: carcinoma; Disease: carcinoma; Disease: carcinoma; Chemical: RA
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: BHA; Chemical: RA; Disease: forestomach tumors; Disease: squamous cell papilloma; Disease: carcinoma; Disease: carcinoma; Disease: carcinoma; Chemical: RA