17919
However , being similar to known drugs does not necessarily mean that a compound is more likely to become a drug and we demonstrate how a new approach , employing Bayesian methods , can be used to compare a set of successful drugs with a set of non - drug compounds to identify those properties that give the greatest distinction between the two sets , and hence the greatest increase in the likelihood of a compound becoming a successful drug .
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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