20714
Here , we use single - molecule atomic force microscopy to unravel the binding mechanism of pili from the probiotic Gram - positive bacterium Lactobacillus rhamnosus GG ( LGG ) .
 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