/*
* Created on Dec 31, 2004
*
*/
package iitb.CRF;
/**
* @author sunita
*
*/
public interface ConstraintDisallowedPairsExtended extends ConstraintDisallowedPairs {
/*
* This returns the canonical id with respect to which we can maintain the state for distint pairs
* For eg. to ensure distinctiveness of labels encoded as BCEU, this would return "U" when the argument is any of the four labels.
*/
int canonicalId(int label);
}