2632
In group - 1 ( n = 10 ) hippocampal DBS was off and in the group - 2 ( n = 10 ) hippocampal DBS was on ( 185 Hz , 0 . 5V , 1V , 2V , and 5V for 60 sec ) following penicillin G injection intracortically .
 Chemical: penicillin G
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: penicillin G