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These results provide pharmacological evidence that the piperidine alkaloid coniine is acting at fetal muscle - type nAChR in a concentration - dependent manner .
 Chemical: piperidine alkaloid; 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: piperidine alkaloid; Chemical: coniine