static{
        final EnumSet<PartOfSpeechTag> tags = EnumSet.allOf(PartOfSpeechTag.class);
        final Map<String, PartOfSpeechTag> map = new HashMap<>(tags.size());
        for(final PartOfSpeechTag tag : tags)
            map.put(MorphologicalTag.PART_OF_SPEECH.getCode() + tag.code, tag);