4173
Partial lesions were made with kainic acid in the interpeduncular nucleus of the ventral midbrain of the rat .
 Chemical: kainic acid
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: kainic acid 
Answer:
 Chemical: kainic acid