5303
Here , using a panel of mice lacking various combinations of adenosine receptors , and mast cells derived from these animals , we show that adenosine receptor agonists provide an effective means of inhibition of mast cell degranulation and induction of cytokine production both in vitro and in vivo .
 Chemical: adenosine; Chemical: adenosine
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: adenosine, adenosine 
Answer:
 Chemical: adenosine; Chemical: adenosine