15339
This feature is consistent with a function for histamine over a host of physiological processes , including regulation of appetite , body temperature , cognitive processes , pain perception and sleep - wake cycle .
 Chemical: histamine
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: histamine 
Answer:
 Chemical: histamine