/**
 * Class CommandWords here.
 *
 */

public class CommandWords
{
    private static final String[] validCommands = {"go", "quit", "help"};

    public CommandWords()
    {
    }

    public boolean isCommand(String aString)
    {
        for(int i=0; i < validCommands.length; i++)
        {
            if(validCommands[i].equals(aString))
            {
                return true;
            }
        }
        return false;
    }
}