3422
Low concentrations of both CTxs potentiated the TE - 671 cell response and higher concentrations of CTx EI , and GI antagonized the actions of both coniine enantiomers demonstrating concentration - dependent coagonism and selective antagonism .
 Chemical: coniine
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: coniine