*/
    public static SuggestItem merge(final SuggestItem item1, final SuggestItem item2) {
        if (!item1.getId().equals(item2.getId())) {
            throw new IllegalArgumentException("Item id is mismatch.");
        }

        final SuggestItem mergedItem = new SuggestItem();

        mergedItem.id = item1.getId();
        mergedItem.text = item1.getText();