*   <li>{@link #add(Normalizer)} - Adds a new normalizer to the chain.</li>
 * </ul>
 *
 * <p>Fields:</p>
 * <ul>
 *   <li>{@code normalizers} - A list of normalizers to be applied in sequence.</li>
 * </ul>
 */
public class NormalizerChain implements Normalizer {
    /**
     * Constructs a new {@link NormalizerChain}.
     */
    public NormalizerChain() {
        // nothing
    }

import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;

/**
 * A chain of {@link ReadingConverter} implementations that applies each converter in sequence to generate possible reading variations of a given text.
 * It maintains a list of ReadingConverter instances and iterates through them, applying each converter to the input text and accumulating the results.