private static final Integer N2 = 2;
  private static final Integer N3 = 3;

  private static final String E11 = "1-1";
  private static final String E12 = "1-2";
  private static final String E12_A = "1-2a";
  private static final String E13 = "1-3";

  private final EdgeType edgeType;
  private final MutableNetwork<Integer, String> network;

  // add parameters: directed/undirected
  @Parameters

    public static RequirementMatcher createExactMatcher(String provideValue) {
        return new ExactMatcher(provideValue);
    }

    public static RequirementMatcher createVersionMatcher(String provideValue) {
        return new VersionMatcher(provideValue);
    }

    private static final class ExactMatcher implements RequirementMatcher {

        private String provides;

        private ExactMatcher(String provides) {

         */
    }

    @Override
    public List<String> convert(final String text, final String field, final String... langs) throws IOException {
        final List<String> readingList = new ArrayList<>();
        readingList.add(toKatakana(text));
        return readingList;
    }

    /**
     * Converts the input string to Katakana.
     * @param inputStr The input string.

        }
    }

    public void scriptedMetric(String name, ConditionOptionCall<ScriptedMetricAggregationBuilder> opLambda) {
        ScriptedMetricAggregationBuilder builder = regScriptedMetricA(name);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void topHits(String name, ConditionOptionCall<TopHitsAggregationBuilder> opLambda) {

        }
    }

    public void scriptedMetric(String name, ConditionOptionCall<ScriptedMetricAggregationBuilder> opLambda) {
        ScriptedMetricAggregationBuilder builder = regScriptedMetricA(name);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void topHits(String name, ConditionOptionCall<TopHitsAggregationBuilder> opLambda) {

    /**
     * The message code.
     */
    private final String messageCode;

    /**
     * The arguments for the message.
     */
    private final Object[] args;

    /**
     * The formatted message.
     */
    private final String message;

    /**
     * The simple message without the message code.
     */
    private final String simpleMessage;

    /**

     */
    @Nonnull
    String getGroupId();

    /**
     * {@return the identifier of the artifact}.
     */
    @Nonnull
    String getArtifactId();

    /**
     * Returns the classifier of the artifact.
     *
     * @return the classifier or an empty string if none, never {@code null}
     */
    @Nonnull
    String getClassifier();

    /**

    protected final String _tablePropertyName = "KeyMatch";

    public String getTableDbName() {
        return _tableDbName;
    }

    @Override
    public String getTableDispName() {
        return _tableDispName;
    }

    @Override
    public String getTablePropertyName() {
        return _tablePropertyName;
    }

    @Override

    // keys are requested parameter names (treated as field name here)
    protected Map<String, Object> elementsAll; // lazy-loaded, then after not null
    protected Map<String, MultipartFormFile> elementsFile; // me too
    protected Map<String, String[]> elementsText; // me too

    // ===================================================================================

    /** Property name for proxy authentication scheme setting */
    public static final String PROXY_AUTH_SCHEME_PROPERTY = "proxyAuthScheme";

    /** Property name for proxy credentials setting */
    public static final String PROXY_CREDENTIALS_PROPERTY = "proxyCredentials";

    /** Property name for user agent setting */
    public static final String USER_AGENT_PROPERTY = "userAgent";