28492
RESULT : Cotreatment and pretreatment of morphine and mitragynine significantly reduced the production of cAMP level at a lower concentration of nitrogen while the higher concentration of this compound could lead to the development of tolerance and dependence as shown by the increase of the cAMP level production in foskolin stimulation .
 Chemical: morphine; Chemical: mitragynine; Chemical: cAMP; Chemical: nitrogen; Chemical: cAMP; Chemical: foskolin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: morphine, mitragynine, cAMP, nitrogen, cAMP, foskolin 
Answer:
 Chemical: morphine; Chemical: mitragynine; Chemical: cAMP; Chemical: nitrogen; Chemical: cAMP; Chemical: foskolin