17835
Among these , M05 , B971 , mPW2PLYPD , Wb97x , and PW91TPSS were among the " recommended " list of at least one dimer from each class .
 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