import  mit16_410_13.*;

import java.util.LinkedList;
import java.io.*;

interface PS9interface
{
    void printModel (PrintStream out);         // prints the model in a readable form
    double transitionProb (String fromstate, String tostate, String action);
    LinkedList viterbi (String startstate, LinkedList actions);
    void baumWelch (String startstate, LinkedList actions, double accuracy);
}