4289
Our data showed that pretreatment with a combination [ + ] and [ - ] - Hup A significantly increased the survival rate and reduced behavioral abnormalities after exposure to 1 . 2 x LD50 soman compared to [ + ] - Hup A in guinea pigs .
 Chemical: [ + ] and [ - ] - Hup A; Chemical: [ + ] - Hup A
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: [ + ] and [ - ] - Hup A; Chemical: [ + ] - Hup A