7874
Excluding close homologues , FINDSITE ( comb ) gives an average enrichment factor of 52 . 1 for generic targets and 22 . 3 for GPCRs within the top 1 % of the screened compound library .
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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