4263
In this experiment , the samples were separated into two disjunct partitions : one was used for training ( identification of candidates and estimation of prediction model ) , while the other was used for validation ( by comparing the predicted and the measured activities ) .
 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