20803
The pharmacophore hypothesis yielded a statistically significant 3D - QSAR model , with a correlation coefficient of 0 . 886 and a survival score of 4 . 97 for training set molecules .
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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:
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