Universal POS, Detailed POS, NER, DEP

UPOS (Universal POS)

UPOS (Universal Part-of-Speech) tags are a core component of the Universal Dependencies (UD) project, designed to provide a standardized, fixed set of 17 categories that remain consistent across all human languages. Unlike language-specific systems (XPOS), which reflect the unique morphological intricacies of a single tongue, UPOS focuses on the functional role of a word. By stripping away language-specific "noise," UPOS allows researchers and developers to compare syntactic structures cross-linguistically and facilitates Cross-Lingual Transfer Learning—where an AI model trained on one language (like English) can apply its structural knowledge to another (like Romanian or Korean). It essentially serves as a "Lingua Franca" for computational linguistics, ensuring that a NOUN remains a NOUN whether the underlying grammar is agglutinative, fusional, or analytic.

Try our Croatian UPOS tagging now.

UPOS Universal Part-of-Speech
Group Tag Meaning Example
Open Class ADJ Adjective velik, star, zelen, neshvatljiv, prvi
ADV Adverb vrlo, sutra, dolje, gdje, tamo
INTJ Interjection pst, joj, bravo, pozdrav
NOUN Noun (common) djevojka, mačka, stablo, zrak, ljepota
PROPN Proper Noun Marija, Ivan, London, NATO, HBO
VERB Verb trčati, trči, trčanje, jesti, jeo, pojeden
Closed Class ADP Adposition u, prema, tijekom
AUX Auxiliary jest, učinio je, učinit će, trebao bi
CONJ Conjunction i, ili, ali (naslijeđena oznaka)
CCONJ Coordinating Conjunction i, ili, ali
SCONJ Subordinating Conjunction ako, dok, da
DET Determiner jedan, neki, taj (članovi)
NUM Numeral 1, 2017, jedan, sedamdeset sedam, MMXIV
PART Particle ne, nije
PRON Pronoun ja, ti, on, ona, ja sam, oni sami, netko
Other PUNCT Punctuation ., (, ), ?, ]
SYM Symbol $, %, +, −, :), 🐻
X Other / Foreign sfpksdpsxmsa, ..., foreign words
SPACE Space newlines, tabs, extra spaces

XPOS (Detailed POS)

XPOS (Language-Specific Part-of-Speech) tagging offers a much higher level of granularity than the broader UPOS (Universal Part-of-Speech) system. While UPOS provides a standardized set of labels designed to work consistently across every language—ensuring that a NOUN in English is treated similarly to a NOUN in XPOS preserves the unique "linguistic DNA" of a specific language. It is the engine behind complex morphological analysis, allowing a system to distinguish not just that a word is a "Verb," but specifically that it is a "Third-Person, Singular, Past Tense, Passive Voice" verb. By capturing the deep grammatical details that UPOS omits for the sake of universality, XPOS enables the creation of translation tools and parsers that understand the precise inflectional logic of a specific culture and tongue.

The Croatian XPOS tags are based on the MULTEXT-East (MSD) system. Each character in a tag like Ncfsn represents a specific morphological feature (Category, Type, Gender, Number, Case, etc.). Because Croatian is a highly inflected Slavic language, there are thousands of unique combinations. For instance, the distinction between animate (y) and inanimate (n) in the Accusative case is vital for correct noun-adjective agreement.

Try our Croatian XPOS tagging now.

Croatian XPOS Positional Detail (MSD)
Group Position Category Label Meaning
Core Category (Pos 1) 1 All N Noun (Imenica)
VVerb (Glagol)
AAdjective (Pridjev)
PPronoun (Zamjenica)
RAdverb (Prilog)
SPreposition (Prijedlog)
Nominal (N / A) 2 Type c / p / g / s Common, Proper / General, Possessive
3 Gender / Degree m, f, n / p, c, s Masculine, Feminine, Neuter / Positive, Comp, Super
4 Number / Gender s, p / m, f, n Singular, Plural / (Gender for Adjectives)
5 Case / Number n, g, d, a Nom, Gen, Dat, Acc
l, i, v Loc, Inst, Voc
s, p (Number for Adjectives)
6 Animacy / Case n, y / n...v Inanimate, Animate / (Case for Adjectives)
7 Definiteness n, y Indefinite, Definite (Adjectives only)
Verbal (V) 2 Type m / a / x Main / Auxiliary / Modal
3 Form/Mood r Present (Prezent)
n / m Infinitive / Imperative
l / p Past Participle / Present Participle
i / s Imperfect / Aorist
4 Tense - (Usually hyphenated in MSD v4)
5 Person 1, 2, 3 First, Second, Third Person
6 Number s, p Singular, Plural
Preposition (S) 2 Case g, d, a, l, i The case governed by the preposition

Dependency

The DEP (Syntactic Dependency) refers to the specific grammatical relationship between a "child" token and its "head" (parent) token. While primary labels (like nsubj or obj) describe the basic structure, attachments starting with a colon (:) provide fine-grained sub-type information. For instance, while nsubj identifies a subject, :pass refines this to show the subject is being acted upon (Passive Voice). Similarly, :nn (Noun Compound) or :assmod (Associative Modifier) help the parser distinguish between simple modifiers and complex ownership or compound relationships, allowing for a much deeper "logical" understanding of the sentence.

DEP Full Syntactic Dependency Labels
Category Label Meaning Example (Token in bold)
Core Arguments nsubj Nominal subject Elon jede.
csubj Clausal subject Ono što je učinio bilo je pogrešno.
obj Direct object Vidim mjesec.
iobj Indirect object Dala mi je dar.
ccomp Clausal complement (finite) Rekao je da je umoran.
xcomp Open clausal complement Želim ići.
Non-Core Dependents obl Oblique nominal Sjedio je na stolici.
vocative Vocative Ivane, dođi ovamo!
expl Expletive Tamo je mačka.
dislocated Dislocated element Tog čovjeka, njega znam.
advcl Adverbial clause modifier Otišao sam nakon što je on stigao.
advmod Adverbial modifier Trči brzo.
discourse Discourse element Pa, nisam siguran.
aux Auxiliary Ja mogu vidjeti.
cop Copula Ona je sretna.
mark Subordinating marker Znam da znaš.
Nominal Dependents nmod Nominal modifier Vrata automobila.
appos Appositional modifier Sam, moj prijatelj.
nummod Numeric modifier Sedam dana.
acl Adjectival clause Plan za pobjedu.
amod Adjectival modifier Plavo nebo.
det Determiner Kraj.
case Case marking Kralj Francuske.
fixed Fixed multiword expression Usprkos tome.
flat Flat multiword name Grad Zagreb.
compound Compound noun Telefonska govornica.
list List element Telefon, ključevi, novčanik.
Coordination conj Conjunct Kruh i maslac.
cc Coordinating conjunction Kruh i maslac.
Special Labels aux:pass Passive auxiliary Bilo je ukradeno.
punct Punctuation Pozdrav!
dep Unspecified dependency (Koristi se za nepoznate veze)
ROOT Root of the sentence Jeo sam ručak.

Common Dependency Attachments (Sub-labels)
Attachment Full Name Explanation Example
:pass Passive Indicates a relationship in a passive voice construction. nsubj:pass (Prozor je bio razbijen)
:nn Noun Compound Indicates that a noun is modifying another noun in a compound structure. compound:nn (Punjač za mobitel)
:prep Prepositional Refines a modifier governed specifically by a preposition. nmod:prep (Mačka na prostirci)
:assmod Associative Modifier Common in Romanian/Baltic languages; shows nouns modifying other nouns. nmod:assmod (Auto mog oca)
:poss Possessive Indicates ownership or a possessive relationship. nmod:poss (Moj pas, Ivanov šešir)
:relcl Relative Clause Identifies a clause that modifies a noun phrase. acl:relcl (Knjiga koju sam čitao)
:tmod Temporal Modifier A modifier specifically describing time or duration. nmod:tmod (Odlazim u utorak)
:prt Particle Used for phrasal verb particles. compound:prt (Odustani, ugasi)
:rcomp Relative Complement Used for complements of relative clauses (common in Dutch). advcl:rcomp (Čovjek koji je otišao)
:flat Flat Modifier Used for multi-word expressions that don't have a clear internal head. flat:name (Predsjednik Obama)

Named Entity Recognition

NER (Named Entity Recognition) is a Natural Language Processing (NLP) task that automatically identifies and categorizes key information (entities) in a text into predefined classes. In spaCy, the statistical model "looks" at the context of a word to determine if it refers to a person, an organization, a monetary value, or a specific date. This is crucial for extracting structured data from unstructured text, such as finding all the company names mentioned in a news article or identifying the dates of events in a history book.

Comparison Note: GPE vs. LOC
Determining whether a place is a GPE or a LOC depends on its political nature:
GPE (Geopolitical Entity): If the location has a government, specific laws, or human-defined administrative borders, it is labeled as a GPE. Examples include Seoul, Germany, the United Kingdom, and California.
LOC (Location): If the place is a natural physical feature or a broad geographic region without a singular governing body, it is labeled as a LOC. Examples include the Alps, the Pacific Ocean, the Middle East, and Mount Everest.

NER Named Entity Recognition
Label Meaning Example
🌍 GPE Geopolitical entity (countries, cities, states) Hrvatska, Zagreb, Francuska, Kalifornija
🏔️ LOC Non-political location (mountains, rivers) Jadransko more, Mount Everest, Alpe
🏢 FAC Facility (buildings, airports, highways) Dubrovačke zidine, Zračna luka Zagreb, Burj Khalifa
👤 PERSON People (real or fictional) Nikola Tesla, Harry Potter, Ruđer Bošković
🚩 NORP Nationalities, religious or political groups Hrvat, budist, demokrati, Japanac
🏢 ORG Organizations (companies, institutions) Google, Ujedinjeni narodi, Rimac Automobili, FIFA
📅 DATE Absolute or relative dates 4. srpnja, 2026., jučer, sljedeći tjedan
⌚ TIME Times smaller than a day 9:30 ujutro, zalazak sunca, deset minuta
🎊 EVENT Named events (wars, festivals) Drugi svjetski rat, Ultra Europe, Olimpijske igre
💰 MONEY Monetary values, including unit 100 $, 5 milijuna eura, 50 £
‱ PERCENT Percentage, including "%" 20%, osamdeset posto, 0,5%
⚖️ QUANTITY Measurements (weight, distance) 5 km, 50 kg, 30 četvornih metara
🔢 ORDINAL "First", "second", etc. prvi, 2., deveti
🔢 CARDINAL Numbers not classified elsewhere 10, tisuću, tri
📦 PRODUCT Objects, vehicles, foods, etc. (not services) iPhone, Rimac Nevera, Coca-Cola
🎨 WORK_OF_ART Titles of books, songs, etc. Mona Lisa, Bohemian Rhapsody, Hamlet
📜 LAW Named legal documents Ustav Republike Hrvatske, Versajski ugovor
🗣️ LANGUAGE Named languages Hrvatski, Python, engleski

Primjer obrade prirodnog jezika (NLP Example)

Ako obradimo rečenicu „Google ima sjedište u Zagrebu“ (Google is based in Zagreb), slojevi izgledaju ovako:

Lemma (Lema): "Google", "imati", "sjedište", "u", "Zagreb"
UPOS (Univerzalne oznake vrsta riječi): "PROPN(Vlastita imenica)", "VERB(Glagol)", "NOUN(Opća imenica)", "ADP(Prijedlog)", "PROPN(Vlastita imenica)"
XPOS (Specifične oznake vrsta riječi/MSD): "Npmsn(Vlastita imenica, muški rod, jednina, nominativ)", "Vmr3s(Glagol, prezent, 3. lice, jednina)", "Ncnsa(Opća imenica, srednji rod, jednina, akuzativ)", "Sl(Prijedlog, vlada lokativom)", "Npmsl(Vlastita imenica, muški rod, jednina, lokativ)"
DEP (Sintaktičke zavisnosti): „Google“ je nsubj (nominalni subjekt) glagola „ima“ koji predstavlja Root (korijen rečenice). „sjedište“ je obj (izravni objekt). „Zagrebu“ je obl (adverbni modifikator) povezan preko prijedloga „u“.
NER (Prepoznavanje imenovanih entiteta): „Google“ je 🏢 ORG (Organizacija), a „Zagrebu“ je 🌍 GPE (Geopolitički entitet).

Part-of-Speech for Main Languages

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