25403
For the 51 smoking experiments wood chips of oak , poplar , hickory , spruce , fir , alder , beech , and beech with an apple - smoking spice mix , cherry - smoking spice mix , and a mix of juniper berries and bay leaves were tested .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None