19856
CONCLUSIONS : These findings suggest that acupuncture alleviates cue - induced cravings through the regulation of activity in brain regions involved in attention , motivation , and reward relative to craving scores in the initial abstinence phase .
 None
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:  
Answer:
 None